You Searched For: Research+Minerals

+ward’ssciencewardsci.com800-962-2660 Schist Type: Metamorphic; regional. Texture/Appearance: Fine to coarse-grained strongly foliated. Granoblastic grading into porphyrob- lastic with mineral segregation banding usually present. Individual minera...

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. Spec...

wardsci.com 800-962-2660 Fluorite Ca F2 Crystallography: Isometric; 4/m32/m. Usually cubic often as penetration twins twinned on {111}. Other forms rare commonly in crystals or cleavable masses; also massive granular. Physical Properties: Cleavage...

+ward’ssciencewardsci.com800-962-2660 Malachite Cu2 (CO3) (OH)2 Crystallography: Monoclinic; 2/m. Rarely in distinct crystals; usually prismatic or fine acicular. Commonly in radiating fibers forming botryoidal or stalactitic masses. Also granular...

+ward’ssciencewardsci.com800-962-2660 Gneiss Type: Metamorphic; regional. Texture/Appearance: Foliated often with distinct banding (segregation) of minerals; some preferred orientation in micas (platy) or hornblende (prismatic crystals). Medium to...

ward’s sciencewardsci.com800-962-2660 Barite BaSO4 (Barite Group) Crystallography: Orthorhombic; 2/m2/m2/m. Crystals usually tabular on {001}; often diamond-shaped. May also be coarsely laminated; granular earthy. Physical Properties: Cleavage: {0...

+ward’ssciencewardsci.com800-962-2660 Pyrite Fe S2 Crystallography: Isometric; 2/m3. Crystals commonly cubic (often striated) also pyritohedral or octahedral. Frequently massive granular sometimes globular reniform radiated. Physical Properties: C...

wardsci.com 800-962-2660 Montmorillonite (NaCa)0.3 (Al Mg)2 Si4 O10 (OH)2 • nH2O Crystallography: Monoclinic. Always in earthy masses; crystals not distinguishable. Physical Properties: Cleavage: None apparent; usually unctuous and plastic. Hardne...

+ward’ssciencewardsci.com800-962-2660 Metaconglomerate Type: Metamorphic regional. Texture/Appearance: Coarse-grained rock containing rounded to subangular clasts greater than 2mm in diameter and distributed in a fine-grained matrix or metamorphic...

+ward’ssciencewardsci.com800-962-2660 Nepheline (NaK) AlSiO4 Crystallography: Hexagonal; 6. Rarely in small prismatic crystals with base; more commonly massive compact and in embedded grains. Physical Properties: Cleavage: {1010} distinct. Fractur...

+ward’ssciencewardsci.com800-962-2660 Copper Cu Crystallography: Isometric; 4/m32/m. Tetrahexahedron faces are common as are the cube dodecahedron and octahedron. Crystals usually malformed and branching; also irregular masses and wire-like forms....

+ward’ssciencewardsci.com800-962-2660 Galena Pb S Crystallography: Isometric; 4/m32/m. Commonly cubic sometimes truncated by the octahedron; rarely decahedral and trisoctahedral. Also massive granular. Physical Properties: Cleavage: {001} perfect....

wardsci.com 800-962-2660 Illite (K H3O) (Al Mg Fe)2 (Si Al)4 O10 [(OH)2 H2O] Crystallography: Monoclinic. Crystals not distinguishable; usually in clay-like masses either compact or friable. Physical Properties: Cleavage: {001} perfect but not obs...

wardsci.com 800-962-2660 Diamond C Crystallography: Isometric; 4/m32/m. Crystals usually octahedral but can be cubic or dodecahedral; curved faces are frequently observed. Physical Properties: Cleavage: {111} perfect; 4-cleavage directions. Fractu...

+ward’ssciencewardsci.com800-962-2660 Goethite Fe+3 O (OH) (See also Limonite) Crystallography: Orthorhombic; 2/m2/m2/m. Acicular or rarely in distinct prismatic vertically striated crystals. Also massive reniform stalactitic or in radiating fibro...

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