Refer to the chart and identify each rock-forming mineral in Fig. A4.4.1 by writing its name below the photograph. 147101390°90°2581411-124%56°3612 90°15 Mineralaugite(pyroxene)biotite(mica)calcitechloritedolomitegarnetgypsumhalitehornblende(amphibole)kaolinitemuscovite(mica)olivineplagioclase(feldspar)orthoclase(feldspar)quartzSOME COMMON ROCK-FORMING MINERALSCommon inIgneousRocksDescriptionVery dark green to brown or dark gray, hard mineral(hardness 5.5-6.0) with two cleavages about 90degees apart.Glossy black mineral that easily splits into thintransparent sheets along its excellent cleavage.Hardness 2.5-3.0.Usually colorless, yellow, white, or amber. Breaks alongthree excellent cleavages (none at 90 degrees) to formrhombohedrons (leaning blocks). Hardness 3. Reactswith dilute hydrochloric acid (HCI).Green mica-like mineral that splits into thin glossytransparent sheets along its excellent cleavage.Hardness 2.0-2.5. Occurs in large crystals orfine-grained masses.Pink, white, gray, yellow, brown, colorless. Perfectrhombohedral cleavage. Effervesces weakly in HCI ifpowdered. Curved, saddle-like crystals.Red to black rounded crystals with no cleavage.Very hard (hardness 7).Colorless, white, or gray mineral. Easily scratched(hardness 2.0), even with a fingernail."Colorless, white, yellow, gray cubes that break intocubic shapes because they have three excellentcleavages 90 degrees apart. Brittle. Hardness 2.5.Dark gray to black, hard mineral (hardness 5.5-6.0).Breaks along glossy cleavage surfaces about 56 and124 degrees apart.Earthy white, gray, or very light brown clayey massesthat leave powder on your fingers. Very fine grained.No visible crystals. Hardness 1-2.Colorless, brown, yellow, or white minerals thateasily split into transparent thin sheets along itsexcellent cleavage. Hardness 2.0-2.5.Pale to dark olive green or yellow mineral with nocleavage. Very hard (hardness 7). Crystals mayresemble sand grains. Brittle.Usually white to pastel gray but may be colorless orblack with iridescent play of colors. Exhibits fracturesurfaces and two good cleavages. Cleavage surfacesmay have thin striations. Hardness 6.Usually pink-orange or pale brown, may be white.Usually has internal discontinuous streaks (exsolu-tion lamellae). Exhibits fracture surfaces and twogood cleavages. Hardness 6.Usually transparent to translucent gray or milkywhite, may be colorless. No cleavage. Breaks alonguneven fractures or curved conchoidal fractures (likeglass). Very hard (hardness 7).Common inSedimentaryRocks✓Common inMetamorphicRocks

Question

Refer to the chart and identify each rock-forming mineral in Fig. A4.4.1 by writing its name below the photograph. 147101390°90°2581411-124%56°3612 90°15 Mineralaugite(pyroxene)biotite(mica)calcitechloritedolomitegarnetgypsumhalitehornblende(amphibole)kaolinitemuscovite(mica)olivineplagioclase(feldspar)orthoclase(feldspar)quartzSOME COMMON ROCK-FORMING MINERALSCommon inIgneousRocksDescriptionVery dark green to brown or dark gray, hard mineral(hardness 5.5-6.0) with two cleavages about 90degees apart.Glossy black mineral that easily splits into thintransparent sheets along its excellent cleavage.Hardness 2.5-3.0.Usually colorless, yellow, white, or amber. Breaks alongthree excellent cleavages (none at 90 degrees) to formrhombohedrons (leaning blocks). Hardness 3. Reactswith dilute hydrochloric acid (HCI).Green mica-like mineral that splits into thin glossytransparent sheets along its excellent cleavage.Hardness 2.0-2.5. Occurs in large crystals orfine-grained masses.Pink, white, gray, yellow, brown, colorless. Perfectrhombohedral cleavage. Effervesces weakly in HCI ifpowdered. Curved, saddle-like crystals.Red to black rounded crystals with no cleavage.Very hard (hardness 7).Colorless, white, or gray mineral. Easily scratched(hardness 2.0), even with a fingernail.&#34;Colorless, white, yellow, gray cubes that break intocubic shapes because they have three excellentcleavages 90 degrees apart. Brittle. Hardness 2.5.Dark gray to black, hard mineral (hardness 5.5-6.0).Breaks along glossy cleavage surfaces about 56 and124 degrees apart.Earthy white, gray, or very light brown clayey massesthat leave powder on your fingers. Very fine grained.No visible crystals. Hardness 1-2.Colorless, brown, yellow, or white minerals thateasily split into transparent thin sheets along itsexcellent cleavage. Hardness 2.0-2.5.Pale to dark olive green or yellow mineral with nocleavage. Very hard (hardness 7). Crystals mayresemble sand grains. Brittle.Usually white to pastel gray but may be colorless orblack with iridescent play of colors. Exhibits fracturesurfaces and two good cleavages. Cleavage surfacesmay have thin striations. Hardness 6.Usually pink-orange or pale brown, may be white.Usually has internal discontinuous streaks (exsolu-tion lamellae). Exhibits fracture surfaces and twogood cleavages. Hardness 6.Usually transparent to translucent gray or milkywhite, may be colorless. No cleavage. Breaks alonguneven fractures or curved conchoidal fractures (likeglass). Very hard (hardness 7).Common inSedimentaryRocks✓Common inMetamorphicRocks

Accepted Answer

specimen 1     is olivine as it does not have any cleavage plane.specimen 11    is hornblend as it…