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Minerals |
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ALBITE (NaAlSi3O8) Class: silicate Rarity: Very Common Crystal: crystal with a massive lamellar granular habit Opalescent Colour: colorless white gray green ; Streak: colorless ; Lustre: vitreous pearly ; Transparency: transparent translucent subtranslucent ; Tenacity: brittle ; Cleavage: perfect imperfect ; Fracture: conchoidal even uneven ; Hardness - between 6 and: 7; Density - between 2.59 and: 2.63 Dana number: 545  Click here to view silicates for sale AMBER Class: organic (see "more information" below for details) Hardness - between 0 and: 10; Density - between 0 and: 24  Click here for more information ARKOSE Class: sedimentary rock (see "more information" below for details)  Click here for more information AUGITE ((Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6) Class: silicate Rarity: Very Common Crystal: crystal with a massive fibrous columnar granular fine coarse habit Magnetic after heating Colour: white green black; Streak: white green; Lustre: vitreous resinous pearly; Transparency: translucent opaque; Tenacity: brittle; Cleavage: perfect interrupted; Fracture: conchoidal uneven; Hardness - between 5 and: 6.5; Density - between 3.2 and: 3.6 Dana number: 555  Click here to view silicates for sale AZURITE (Cu3(CO3)2(OH)2) Class: carbonate Rarity: Rare Crystal: crystal with a massive columnar habit Colour: blue; Streak: blue; Lustre: vitreous adamantine; Transparency: transparent subtranslucent; Tenacity: brittle; Cleavage: perfect imperfect; Fracture: conchoidal; Hardness - between 3.5 and: 4; Density - between 3.77 and: 3.89 Dana number: 528  Click here to view carbonates for sale BASALT Class: igneous rock (see "more information" below for details)  Click here for more information BIOTITE (K(Mg,Fe)3(Al,Fe)Si3O10(OH,F)2) Class: silicate Rarity: Very Common Crystal: crystal with a massive habit Colour: green black red yellow white; Streak: colorless; Lustre: submetallic pearly; Transparency: transparent translucent opaque; Tenacity: flexible; Cleavage: perfect; Fracture: unknown; Hardness - between 2.5 and: 3; Density - between 2.7 and: 3.1 Dana number: 663  Click here to view silicates for sale CALCITE (Ca(CO3)) Class: carbonate Rarity: Very Common Crystal: crystal with a massive fibrous granular stalactitic habit Fluorescent Colour: white colorless gray red green blue yellow brown; Streak: white gray; Lustre: vitreous earthy; Transparency: transparent translucent opaque; Cleavage: perfect; Fracture: conchoidal; Hardness - between 3 and: 3; Density - between 2.71 and: 3 Dana number: 512  Click here to view carbonates for sale CHALCOPYRITE (CuFeS2) Class: sulphide Rarity: Very Common Crystal: crystal with a massive botryoidal reniform habit Magnetic after heating Colour: yellow; Streak: black; Lustre: metallic; Transparency: opaque; Tenacity: brittle; Cleavage: distinct; Fracture: uneven; Hardness - between 3.5 and: 4; Density - between 4.1 and: 4.3 Dana number: 431  Click here to view sulphides for sale CHRYSOBERYL (BeAl2O4) Class: oxide Rarity: Very Rare Crystal: crystal with a unknown habit Opalescent Colour: green white brown yellow red; Streak: none; Lustre: vitreous; Transparency: transparent translucent; Tenacity: brittle; Cleavage: distinct imperfect; Fracture: uneven conchoidal; Hardness - between 8.5 and: 8.5; Density - between 3.5 and: 3.84 Dana number: 494  Click here to view oxides for sale CHRYSOCOLLA ((Cu,Al)2H2Si2O5(OH)4.n(H2O)) Class: silicate Rarity: Rare Crystal: crystal with a cryptocrystalline botryoidal habit Colour: green blue; Streak: white; Lustre: vitreous; Transparency: translucent opaque; Tenacity: sectile brittle; Cleavage: none; Fracture: conchoidal; Hardness - between 2.4 and: 2.4; Density - between 2 and: 2.24 Dana number: 686   Click here to view silicates for sale COAL Class: sedimentary rock (see "more information" below for details)  Click here for more information CONGLOMERATE Class: sedimentary rock (see "more information" below for details)  Click here for more information COPPER (Cu) Class: element Rarity: Common Crystal: crystal with a massive pseudomorph habit Colour: red; Streak: red; Lustre: metallic; Transparency: opaque; Tenacity: malleable; Cleavage: none; Fracture: hackly; Hardness - between 2.5 and: 3; Density - between 8.8 and: 8.9 Dana number: 404   Click here to view native elements for sale CORUNDUM (Al2O3) Class: oxide Rarity: Common Crystal: crystal with a massive granular habit Colour: blue red yellow brown gray white; Streak: none; Lustre: adamantine vitreous; Transparency: transparent translucent; Tenacity: brittle; Cleavage: perfect indistinct; Fracture: uneven conchoidal; Hardness - between 9 and: 9; Density - between 3.95 and: 4.1 Dana number: 481  Click here to view oxides for sale CROCOITE (PbCrO4) Class: chromate Rarity: Very Rare Crystal: crystal with a columnar granular habit Colour: red; Streak: yellow; Lustre: adamantine vitreous; Transparency: translucent; Tenacity: sectile; Cleavage: distinct; Fracture: conchoidal uneven; Hardness - between 2.5 and: 3; Density - between 5.9 and: 6.1 Dana number: 754  Click here to view chromates for sale DOLOMITE (CaMg(CO3)2) Class: carbonate Rarity: Very Common Crystal: crystal with a granular fine coarse habit Colour: white red green brown gray black; Streak: white; Lustre: vitreous pearly; Transparency: transparent translucent; Tenacity: brittle; Cleavage: perfect; Fracture: subconchoidal; Hardness - between 3.5 and: 4; Density - between 2.8 and: 2.9 Dana number: 516  Click here to view carbonates for sale FLUORAPATITE (Ca5 (PO4)3 F) Class: phosphate, arsenate, vanadate Rarity: Common Crystal: crystal with a short or long prismatic and tabular, also masive, glovular and fibrous habit Colour: colorless, white, gray, yellow, green, purple, blue, red, brown; Streak: white; Lustre: vitreous to subresinous; Transparency: transparent, translucent; Cleavage: indistinct; Fracture: conchoidal; Hardness - between 5 and: 5; Density - between 3.1 and: 3.2  Click here to view phosphates for sale FLUORITE (Ca F2) Class: halide Rarity: Very Common Crystal: crystal with a cubes etc, also granular habit Colour: intense purple, colorless, green, yellow, blue, pink, reddish orange; Streak: white; Lustre: vitreous; Transparency: transparent, translucent; Cleavage: perfect; Fracture: conchoidal; Hardness - between 4 and: 4; Density - between 3 and: 3.3   Click here to view halides for sale GALENA (PbS) Class: sulphide Rarity: Very Common Crystal: crystal with a massive fine granular coarse granularimpalpable fibrous habit Colour: gray; Streak: gray; Lustre: metallic; Transparency: opaque; Tenacity: brittle; Cleavage: perfect; Fracture: subconchoidal even; Hardness - between 2.5 and: 2.75; Density - between 7.4 and: 7.6 Dana number: 416  Click here to view sulphides for sale GARNET ((M1)3 (M2)2 (Si O4)3) Class: silicate Rarity: Rare Crystal: crystal with a various beads,massive,crystals w/12 diamond faces habit Colour: violet, red, yellow, green, black, brown; Streak: white; Lustre: resinous,vitreous; Transparency: transparent, translucent, opaque; Cleavage: none; Fracture: uneven; Hardness - between 6 and: 8; Density - between 3.4 and: 4.2   Click here to view silicates for sale GNEISS Class: metamorphic rock (see "more information" below for details)  Click here for more information GOLD (Au) Class: element Rarity: Rare Crystal: crystal with a reticulated dendritic massive habit Colour: yellow white red; Streak: yellow; Lustre: metallic; Transparency: opaque; Tenacity: malleable; Cleavage: none; Fracture: hackly; Hardness - between 2.5 and: 3; Density - between 15.6 and: 19.33 Dana number: 401   Click here to view native elements for sale GRAPHITE (C) Class: element Rarity: Rare Crystal: crystal with a foliated radiated habit Greasy feel Colour: gray black; Streak: black; Lustre: metallic earthy; Transparency: opaque; Tenacity: flexible inelastic; Cleavage: perfect; Fracture: unknown; Hardness - between 1 and: 2; Density - between 2.09 and: 2.23 Dana number: 397  Click here to view native elements for sale GYPSUM (CaSO4.2(H2O)) Class: sulphate Rarity: Very Common Crystal: crystal with a foliated massive lamellar stellated granular habit Colour: colorless white gray red yellow blue black brown; Streak: white; Lustre: pearly subvitreous earthy; Transparency: transparent translucent opaque; Cleavage: perfect distinct; Fracture: conchoidal; Hardness - between 1.5 and: 2; Density - between 2.31 and: 2.33 Dana number: 758   Click here to view sulphates for sale HALITE (NaCl) Class: halide Rarity: Very Common Crystal: crystal with a massive granular columnar habit Saline taste Colour: colorless white yellow red blue; Streak: white; Lustre: vitreous; Transparency: transparent translucent; Tenacity: brittle; Cleavage: perfect; Fracture: conchoidal; Hardness - between 2.5 and: 2.5; Density - between 2.1 and: 2.6 Dana number: 459  Click here to view halides for sale HEMATITE (Fe2O3) Class: oxide Rarity: Very Common Crystal: crystal with a columnar granular botryoidal stalactitic habit Magnetic after heating Colour: gray black red; Streak: red brown; Lustre: metallic dull; Transparency: opaque; Tenacity: brittle elastic; Cleavage: none; Fracture: subconchoidal uneven; Hardness - between 5.5 and: 6.5; Density - between 4.9 and: 5.3 Dana number: 483  Click here to view oxides for sale HORNBLENDE (Ca(Mg,Fe)3Si4O12) Class: silicate Rarity: Very Common Crystal: crystal with a columnar fibrous massive granular habit Magnetic after heating Colour: green black; Streak: colorless white; Lustre: vitreous pearly silky; Transparency: translucent opaque; Tenacity: brittle; Cleavage: perfect distinct; Fracture: subconchoidal uneven; Hardness - between 5 and: 6; Density - between 3 and: 3.47 Dana number: 571  Click here to view silicates for sale JET Class: organic (see "more information" below for details) Hardness - between 0 and: 10; Density - between 0 and: 24  Click here for more information LABRADORITE ((Na,Ca) Al Si3 O8) Class: silicate Rarity: Very Common Crystal: crystal with a tabular, usually massive habit Colour: gray, smoky black; Streak: white; Lustre: vitreous; Transparency: translucent, opaque; Cleavage: distinct indistinct; Fracture: conchoidal; Hardness - between 6 and: 6; Density - between 2.7 and: 2.7  Click here to view silicates for sale LIMESTONE Class: sedimentary rock (see "more information" below for details)  Click here for more information LIMONITE (2Fe2O3.3H2O) Class: oxide Rarity: Very Common Crystal: crystal with a stalactitic botryoidal mammilary fibrous massive habit Magnetic after heating Colour: brown black; Streak: brown; Lustre: silky submetallic earthy; Transparency: opaque; Cleavage: none; Fracture: conchoidal; Hardness - between 5 and: 5.5; Density - between 3.6 and: 4 Dana number: 506  Click here to view oxides for sale MAGNETITE (Fe3O4) Class: oxide Rarity: Very Common Crystal: crystal with a massive granular coarse fine habit Weakly Magnetic Colour: black; Streak: black; Lustre: metallic submetallic; Transparency: opaque; Tenacity: brittle; Cleavage: indistinct; Fracture: subconchoidal uneven; Hardness - between 5.5 and: 6.5; Density - between 5.17 and: 5.18 Dana number: 491  Click here to view oxides for sale MALACHITE (Cu2(CO3)(OH)2) Class: carbonate Rarity: Very Common Crystal: crystal with a massive botryoidal stalactitic granular fibrous habit Colour: green; Streak: green; Lustre: vitreous earthy; Transparency: translucent subtranslucent opaque; Tenacity: brittle; Cleavage: perfect; Fracture: subconchoidal uneven; Hardness - between 3.5 and: 4; Density - between 3.9 and: 4.03 Dana number: 527  Click here to view carbonates for sale MUDSTONE Class: sedimentary rock (see "more information" below for details)  Click here for more information MUSCOVITE (KAl2(Si3Al)O10(OH,F)2) Class: silicate Rarity: Very Common Crystal: crystal with a massive cryptocrystalline habit Colour: colorless gray brown green yellow red; Streak: colorless; Lustre: vitreous pearly silky; Transparency: transparent translucent; Tenacity: flexible; Cleavage: perfect; Fracture: uneven; Hardness - between 2 and: 2.25; Density - between 2.76 and: 3 Dana number: 659  Click here to view silicates for sale OBSIDIAN Class: non-crystalline (see "more information" below for details) Hardness - between 0 and: 10; Density - between 0 and: 24  Click here for more information OLIVINE ((Mg,Fe)2 Si O4) Class: silicate Rarity: Very Common Crystal: crystal with a granular,prismatic, tabular habit Colour: yellow-green, yellow-brown; Streak: colorless, white; Lustre: vitreous; Transparency: transparent, translucent; Cleavage: indistinct; Fracture: conchoidal; Hardness - between 6.5 and: 7; Density - between 3.3 and: 3.3  Click here to view silicates for sale ORTHOCLASE (KAlSi3O8) Class: silicate Rarity: Very Common Crystal: crystal with a massive granular lamellar habit Colour: colorless white yellow red gray green; Streak: colorless; Lustre: vitreous pearly; Transparency: transparent translucent; Tenacity: brittle; Cleavage: perfect imperfect; Fracture: conchoidal uneven; Hardness - between 6 and: 6; Density - between 2.56 and: 2.58 Dana number: 538  Click here to view silicates for sale PUMICE Class: igneous rock (see "more information" below for details)  Click here for more information PYRITE (FeS2) Class: sulphide Rarity: Very Common Crystal: crystal with a massive fine granular radiated reniform globular habit Magnetic after heating Colour: yellow; Streak: black; Lustre: metallic; Transparency: opaque; Tenacity: brittle; Cleavage: indistinct; Fracture: conchoidal uneven; Hardness - between 6 and: 6.5; Density - between 4.95 and: 5.1 Dana number: 433   Click here to view oxides for sale QUARTZITE Class: metamorphic rock (see "more information" below for details)  Click here for more information RHODONITE ((Mn,Fe,Mg,Ca)SiO3) Class: silicate Rarity: Very Rare Crystal: crystal with a large tabular crystals, massive habit Colour: red black; Streak: white; Lustre: vitreous pearly; Transparency: transparent translucent; Tenacity: brittle; Cleavage: perfect imperfect; Fracture: conchoidal uneven; Hardness - between 5.5 and: 6.5; Density - between 3.4 and: 3.68 Dana number: 564  Click here to view silicates for sale RHYOLITE Class: igneous rock (see "more information" below for details)  Click here for more information SLATE Class: metamorphic rock (see "more information" below for details)  Click here for more information SPHALERITE ((Zn,Fe)S) Class: sulphide Rarity: Very Common Crystal: crystal with a massive fine granular foliated fibrous botryoidal habit Colour: yellow brown black red green white colorless; Streak: brown yellow white; Lustre: resinous adamantine; Transparency: translucent transparent; Tenacity: brittle; Cleavage: perfect; Fracture: conchoidal; Hardness - between 3.5 and: 4; Density - between 3.9 and: 4.1 Dana number: 421  Click here to view sulphides for sale SULFUR (S) Class: element Rarity: Very Common Crystal: crystal with a massive reniform stalactitic habit Colour: yellow brown gray; Streak: white; Lustre: resinous; Transparency: transparent translucent; Tenacity: brittle sectile; Cleavage: imperfect; Fracture: conchoidal uneven; Hardness - between 1.5 and: 2.5; Density - between 2.05 and: 2.09 Dana number: 398  Click here to view native elements for sale TALC (Mg3Si4O10(OH)2) Class: silicate Rarity: Very Common Crystal: crystal with a massive globular stellated fibrous cryptocrystalline habit Greasy feel Colour: green white gray brown; Streak: white; Lustre: pearly; Transparency: subtransparent translucent; Tenacity: sectile; Cleavage: perfect; Fracture: unknown; Hardness - between 1 and: 1.5; Density - between 2.7 and: 2.8 Dana number: 677  Click here to view silicates for sale TEKTITE Class: non-crystalline (see "more information" below for details) Hardness - between 0 and: 10; Density - between 0 and: 24  Click here for more information TOPAZ (Al2SiO4(F,OH)2) Class: silicate Rarity: Very Rare Crystal: crystal with a striated columnar granular fine coarse habit Colour: yellow white gray green blue red; Streak: colorless; Lustre: vitreous; Transparency: transparent subtranslucent; Tenacity: brittle; Cleavage: perfect; Fracture: subconchoidal uneven; Hardness - between 8 and: 8; Density - between 3.4 and: 3.6 Dana number: 613  Click here to view silicates for sale TOURMALINE (H9Al3(B.OH)2Si4O19) Class: silicate Rarity: Very Common Crystal: crystal with a massive columnar parallel divergent habit Colour: black green red blue white colorless; Streak: colorless; Lustre: vitreous resinous; Transparency: transparent translucent opaque; Tenacity: brittle; Cleavage: indistinct; Fracture: subconchoidal uneven; Hardness - between 7 and: 7.5; Density - between 2.98 and: 3.2 Dana number: 634  Click here to view silicates for sale |
