Research Minerals

wardsci.com 800-962-2660 Quartz (variety Amethyst) Si O2 Crystallography: Hexagonal -R;32 (low quartz). Hexagonal; 622 (high quartz). Crystals not common. Usually massive, coarsely crystalline. Physical Properties: Cleavage: Generally none; occasi...

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+ward’ssciencewardsci.com800-962-2660 Sulfur S Crystallography: Orthorhombic; 2/m2/m2/m. Crystals commonly dipyramidal; thick tabular on {001.} Also massive, in spherical or reniform shapes, incrusting, earthy. Physical Properties: Cleavage: None....

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wardsci.com 800-962-2660 Chromite Fe+2 Cr2 O4 (Spinel Group) Crystallography: Isometric; 4/m32/m. Habit octahedral but crystals small and rare; most often granular to compact; massive. Physical Properties: Cleavage: None. Fracture uneven; brittle....

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wardsci.com 800-962-2660 Marble Type: Metamorphic; regional and contact. Texture/Appearance: Fine to coarse-grained; granoblastic to saccharoidal. May appear patched or with streaks or banding that is deformed. Color: Variable, commonly white, pin...

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wardsci.com 800-962-2660 Talc Mg3 Si4 O10 (OH)2 Crystallography: Monoclinic; 2/m. Rarely in crystals; more often in foliated masses or compact fine- grained aggregates. Compact and massive varieties known as steatite or soapstone. Physical Propert...

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+ward’ssciencewardsci.com800-962-2660 Magnetite Fe+2Fe2+3O4 (Spinel Group) Crystallography: Isometric; 4/m32/m. Frequently in octahedral crystals; rarely dodecahedral. Commonly coarse-to fine-grained granular, massive. Physical Properties: Cleavag...

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wardsci.com 800-962-2660 Microcline K Al Si3 O8 (Feldspar Group) Crystallography: Triclinic; 1. Crystal habit similar to orthoclase. Usually polysynthetically twinned on both the albite and pericline laws, giving characteristic grating or gridiron...

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+ward’ssciencewardsci.com800-962-2660 Muscovite K Al2 (Si3 Al) O10 (OH, F)2 (Mica Group) Crystallography: Monoclinic; 2/m. Distinct crystals rare; usually tabular with prominent {001}. Usually in lamellar masses or small flakes. Foliated in large ...

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wardsci.com 800-962-2660 Quartz (variety Rose) Si O2 Crystallography: Hexagonal -R; 32 (low quartz). Hexagonal; 622 (high quartz). Crystals not common. Usually massive, coarsely crystalline. Physical Properties: Cleavage: Generally none; occasiona...

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wardsci.com 800-962-2660 Topaz Al2SiO4 (F,OH)2 Crystallography: Orthorhombic; 2/m2/m2/m. Crystals commonly prismatic with vertical prism faces often striated; also in crystalline masses or granular. Physical Properties: Cleavage: {001} perfect. Fr...

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1 All About Elements: Neon https://wardsci.com/store wardsci.com | 800-962-2660 2 Ward’s All About Elements Series Building Real-World Connections to the Building Blocks of Chemistry The periodic table of elements is an essential part of any chemi...

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+ward’ssciencewardsci.com800-962-2660 Actinolite Ca2 (Mg, Fe+2)5 Si8O22(OH)2 (Amphibole Group) Crystallography: Monoclinic; 2/m. Crystals usually prismatic; columnar or fibrous. Also massive or granular. Physical Properties: Cleavage: {110} perfec...

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+ward’ssciencewardsci.com800-962-2660 Albite NaAlSi3O8 (An0-10) (Feldspar Group) (see also Plagioclase) Crystallography: Triclinic; 1. Crystals commonly tabular parallel to {010}; sometimes elongated on b. Twinning and striations common. Often as ...

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+ward’ssciencewardsci.com800-962-2660 Halite NaCl Crystallography: Isometric; 4/m32/m. Cubic habit; other forms very rare. Also massive, granular to compact. Physical Properties: Cleavage: {001} perfect. Fracture conchoidal; rather brittle. Hardne...

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