Labels:book | bulletin board | hakham | monitor | reckoner | sky | vegetarianism | web site OCR: MALACHITE PROFILE Crystals are prismatic. or acicular (needle shaped) and often twinned Usual habits are stalactitic botyroidal (grape -like) ma sse with fiberous, banded structure and crusts Malachite is rich green with pale green streak It is translucent 10 opaque with vitreous (glassy) luster to adamantine (diamond -like) luster; fiberous habits have silky luster FORMATION Forms in oxidized copper deposits often with secondary minerals including azurite TESTS Dissolves in hydrochloric acid with bubbling masses
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