clay minerals

+ward’ssciencewardsci.com800-962-2660 Quartz (variety Flint) Si O2 Crystallography: Hexagonal -R; 32 (low-quartz). Hexagonal; 622 (high quartz). cryptocrystalline; massive granular. Physical Properties: Cleavage: Generally none; occasional indisti...

PDF

+ward’ssciencewardsci.com800-962-2660 Phlogopite KMg3 Si3 AlO10 (F, OH)2 (Mica Group) Crystallography: Monoclinic; 2/m. Usually in six-sided plates or in tapering prismatic crystals; also in foliated masses. Physical Properties: Cleavage: {001} pe...

PDF

+ward’ssciencewardsci.com800-962-2660 Andesite Type: Igneous; extrusive. Texture/Appearance: Generally fine-grained, aphanitic. Massive structure, often porphyritic with phenocrysts standing out in a vitreous or fine-grained groundmass. Color: Dar...

PDF

wardsci.com 800-962-2660 Bytownite (Ca,Na) Al (Al,Si) Si2O8 (An70-90) (Feldspar) Crystallography: Triclinic; 1. Crystals usually tabular parallel to {010}; twinning frequent as in albite. Commonly as irregular grains and cleavable masses. Physical...

PDF

wardsci.com 800-962-2660 Peridotite Type: Igneous; intrusive. Texture/Appearance: Medium to coarse-grained; massive, granular, sometimes porphyritic. Color: Medium gray to greenish-gray. Mineralogy/Chemistry: Ultramafic, with mafic minerals greate...

PDF

wardsci.com 800-962-2660 Forsterite Mg2 Si O4 (Olivine Group) Crystallography: Orthorhombic; 2/m2/m2/m. Rarely in small equidimensional or tabular crystals; usually in granular masses and as rounded grains. Physical Properties: Cleavage: {101} ind...

PDF

+ward’ssciencewardsci.com800-962-2660 Labradorite (Ca,Na) Al (Al,Si) Si2O8 (An30-70) (Feldspar Group) (see also Plagioclase) Crystallography: Triclinic; 1. Crystals usually tabular parallel to {010}; twinning frequent as in albite. Commonly in irr...

PDF

Almandine Fe3+2 Al2 (SiO4)3 (Garnet Group) Crystallography: Isometric; 4/m32/m. common forms are dodecahedron and trapezohedron. Also massive, granular. Physical Properties: Cleavage: Not prominent; {110} parting sometimes distinct. Fracture subco...

PDF

ward’s sciencewardsci.com800-962-2660 Gabbro Type: Igneous; intrusive. Texture/Appearance: Granular; medium-grained. Color: Dark, medium gray, green-gray or brownish-gray. Mineralogy/Chemistry: Mafic; with essential plagioclase (50%-75%) and pyrox...

PDF

2020 Ward’s Science Chemicals List We have all the chemicals you need! • Largest selection of chemicals • Designed for chemistry education From elementary to advanced college chemistry. Learn more and shop at wardsci.com or call 800-962-2660 *Base...

PDF

Conditions for Customer Ownership We hold permits allowing us to transport these organisms. To access permit conditions, click here. Never purchase living specimens without having a disposition strategy in place. • There are a few species of bacte...

PDF