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Last updated on April 16, 2014 at 1:21 EDT

Connecticut Reference Libraries

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2012-06-14 10:57:58

Symbol: RURO4 Group: Dicot Family: Rosaceae Duration: Perennial Growth Habit: Subshrub Native Status: L48    N Distribution: RubusrossbergianusBlanch. distribution:USA(CT, MA, RI, VT) Classification:       Kingdom   Plantae – Plants Subkingdom   Tracheobionta – Vascular plants Superdivision   Spermatophyta – Seed plants...

2012-06-18 04:57:55

Symbol: CRPE17 Group: Dicot Family: Rosaceae Duration: Perennial Growth Habit: Shrub Native Status: L48    N Distribution: CrataeguspequotorumSarg. distribution:USA(CT) Classification:       Kingdom   Plantae – Plants Subkingdom   Tracheobionta – Vascular plants Superdivision   Spermatophyta – Seed plants Division...

Chalcocite
2005-05-26 11:32:33

Chalcocite, copper(I) sulfide (Cu2S), is an important copper mineral ore. It is opaque, being colored dark-gray to black with a metallic luster. It has a hardness of 2½ - 3. It is a sulfide with an orthorhombic crystal system. Chalcocite is sometimes found as a primary vein mineral in hydrothermal veins. However, most chalcocite occurs in the supergene enriched environment below the...