chrysoberyl

All Sources -
Updated Media sources (1) About encyclopedia.com content Print Topic Share Topic
views updated

chrysoberyl Mineral, BeAl2O4; sp. gr. 3.5–3.8; hardness 8.5; orthorhombic; various shades of green or greenish-yellow; white streak; vitreous lustre; crystal form tabular; cleavage prismatic {110}; occurs in granites, pegmatites, and mica schists, also in alluvial sands and gravels. The emerald-green variety is used as a gemstone (alexandrite).

views updated

chrysoberyl •anthill • Edgehill • sidehill • molehill •foothill • dunghill •sigil, strigil, vigil •strongyle • Virgil • Gaitskell • orchil •roadkill • Danakil • overkill •amyl, Tamil •treadmill • windmill • gristmill •sawmill • watermill • vinyl • mini-pill •overspill • Caryl •mandrel, mandrill •Avril •beryl, Cheryl, chrysoberyl, imperil, Merrill, peril, Sheryl •tendril • April • Cyril • fibril • nombril •nostril • Bovril • tumbril • escadrille •espadrille • gracile • Cecil • utensil •codicil • windowsill •dactyl, pterodactyl •pastille • standstill •dentil, lentil, ventil •quintile • pistil • postil • tormentil •ethyl