Question: 12. Olivine ((Fe, Mg) SiO4) (4 Minutes) Mineral Box 1 Specimen 3 The Crystals Are Loosely Held Together-but You Will Still See It Scratch Glass, Thus It Is Harder Than Glass. Color: Luster: Metallic/Submetallic Or Nonmetallic Hardness: Streak: Cleavage, Type: I Fracture Other: Mineral Named For Olive Green Color; Usually Has A “sugary” Or Granular Texture …

Question: 12. Olivine ((Fe, Mg) SiO4) (4 Minutes) Mineral Box 1 Specimen 3 The Crystals Are Loosely Held Together-but You Will Still See It Scratch Glass, Thus It Is Harder Than Glass. Color: Luster: Metallic/Submetallic Or Nonmetallic Hardness: Streak: Cleavage, Type: I Fracture Other: Mineral Named For Olive Green Color; Usually Has A “sugary” Or Granular Texture …

12. Olivine ((Fe, Mg) SiO4) (4 minutes) Mineral Box 1 Specimen 3 the crystals are loosely held together-but you will still se
15. Dolomite (CaMg(CO3)2) (4 minutes) Mineral Box 1 Specimen 4 Color: Luster: Metallic/Submetallic or Nonmetallic Hardness: S

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12. Olivine ((Fe, Mg) SiO4) (4 minutes) Mineral Box 1 Specimen 3 the crystals are loosely held together-but you will still see it scratch glass, thus it is harder than glass. Color: Luster: Metallic/Submetallic or Nonmetallic Hardness: Streak: Cleavage, Type: I Fracture Other: mineral named for olive green color; usually has a “sugary” or granular texture 13. Garnet (Fe3Al2(SiOs)) (4 minutes) Mineral Box 1 Specimen 8 Color: Rule: Be alert regarding cleavage versus crystal faces- especially when investigating garnet. Look for fracture along the broken surface. Any flat surfaces are the crystal faces. Always think: “Is this how it grow (crystal faces) or how it broke (cleavage/fracturo) 7” Luster: Metallic/Submetallic or Nonmetallic Hardness: Streak: 0 Cleavage, Type: O Fracture Other: single crystals form dodecahedrons (12-sided polyhedron with pentagonal faces) 15. Dolomite (CaMg(CO3)2) (4 minutes) Mineral Box 1 Specimen 4 Color: Luster: Metallic/Submetallic or Nonmetallic Hardness: Streak: 0 Cleavage, Type: O Fracture Other: