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+ward’ssciencewardsci.com800-962-2660 Anorthite CaAl2Si2O8(An90-100) (Feldspar Group) (see also Plagioclase) Crystallography: Triclinic; 1. Crystals usually prismatic parallel to c-axis; twinning as in albite. Commonly massive, cleavable, with gra...

wardsci.com 800-962-2660 Limonite FeO • OH • nH2O Crystallography: Not crystallized, a mineral colloid. Usually stalactitic, botryoidal, or mammillary; also fibrous, massive, earthy. Physical Properties: Cleavage: None apparent. Hardness: 5.0-5.5....

wardsci.com 800-962-2660 Pegmatite Type: Igneous; intrusive. Texture/Appearance: Very coarse-grained, marked by intergrowth of large (up to 1 cm) crystals. In some instances, individual crystals may grow up to several feet. Color: Varies; mostly l...

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...

+ward’ssciencewardsci.com800-962-2660 Schorl (Tourmaline Group) Na Fe3+2 Al6 (BO3)3 Si6 O18 (OH)4 Crystallography: Hexagonal -R; 3m. Usually in prismatic crystals with rounded triangular cross- section due to prominent trigonal prism and subordina...

+ward’ssciencewardsci.com800-962-2660 Staurolite (Fe+2, Mg, Zn)2 Al9 (Si, Al)4 O22 (OH)2 Crystallography: Monoclinic (pseudo-orthorhombic); 2/m. Crystals prismatic with common forms {110}, {001}, and {101}. Cruciform twins very common (at nearly 9...

+ward’ssciencewardsci.com800-962-2660 Quartz (variety Rock Crystal) Si O2 Crystallography: Hexagonal -R; 32 (low-quartz). Hexagonal; 622 (high quartz). Crystals commonly prismatic, with prism faces horizontally striated and usually terminated by p...

+ward’ssciencewardsci.com800-962-2660 Oligoclase (Na,Ca) Al (Al,Si) Si2O8 (An10-30) (Feldspar Group) (see also Plagioclase) Crystallography: Triclinic; 1. Crystals usually tabular parallel to {010}; twinning frequent as in albite. Commonly as irre...

Working with Nasonia Manual Working with Nasonia Nasonia vitripennis is a small parasitic wasp that is involved in a symbiotic relationship with a host organism known as Sarcophaga bullata, or a flesh fly. More specifically, Nasonia is a “parasito...

+ward’ssciencewardsci.com800-962-2660 Anorthoclase (Na, K) AlSi3 O8 (Feldspar Group) Crystallography: Triclinic; 1. Twinning common. Physical Properties: Cleavage: Principle cleavage at right angles or very close to 90°. Fracture uneven; brittle. ...

+ward’ssciencewardsci.com800-962-2660 Beryl Be3 Al2 Si6 O18 Crystallography: Hexagonal; 6/m2/m2/m. Strong prismatic habit; frequently vertically striated and grooved. Forms usually present consist only of {1010} and {0001}. Physical Properties: Cl...

+ward’ssciencewardsci.com800-962-2660 Biotite K (Mg, Fe+2)3 (Al, Fe+3) Si3 O10 (OH,F)2 (Mica Group) Crystallography: Monoclinic; 2/m. Usually in irregular foliated masses, and rarely in tabular or short prismatic crystals. Physical Properties: Cle...

Bufo Toad Conditions for Customer Ownership (per USDA Permits) 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. A per...

1 All About Elements: Neon 2 boreal.com | 800-387-9393 Boreal’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 chemistry classroom or science...

+ward’ssciencewardsci.com800-962-2660 Quartzite Type: Metamorphic; regional. Texture/Appearance: Massive, with generally small grain size; sometimes saccharoidal. Grain size (sand size, 1/16-2mm) dependent on original detritus. Generally non-folia...

+ward’ssciencewardsci.com800-962-2660 Cinnabar HgS Crystallography: Hexagonal-R; 32 (low temperature form). Crystals usually rhombohedral, often in penetration twins. Commonly fine granular, massive; also earthy. Physical Properties: Cleavage: {10...