Latest Geochemistry Stories
Infill development drilling continues to confirm continuity of high grade on the 55 Zone while step out drilling at Bagassi South continues to grow strike length of QV1 TORONTO, May
TORONTO, May 12, 2015 /PRNewswire/ - Roxgold Inc.
LAKEWOOD, Colo., May 12, 2015 /PRNewswire/ -- Pershing Gold Corporation (OTCQB: PGLC) ("Pershing Gold" or the "Company"), an emerging Nevada gold producer on a fast-track to reopen the Relief
MIAMI, May 11, 2015 /PRNewswire-USNewswire/ -- A rare discovery by an FIU geologist could radically change diamond prospecting
This picky plant could help lead us to the diamond deposits buried deep underground.
VANCOUVER, May 5, 2015 /PRNewswire/ - Sarama Resources Ltd.
Step out drilling at QV1 returns significant widths and grade TORONTO, May 5, 2015 /PRNewswire/ - Roxgold Inc.
VANCOUVER, April 28, 2015 /PRNewswire/ - Sarama Resources Ltd.
VANCOUVER, April 27, 2015 /PRNewswire/ - Sarama Resources Ltd.
TSX-V: JAG TORONTO, April 27, 2015 /PRNewswire/ - Jaguar Mining Inc.
Diorite is a grey to dark grey intermediate intrusive igneous rock composed principally of plagioclase feldspar (typically andesine), hornblende, and/or pyroxene. Varieties deficient in hornblende and other dark minerals are called leucodiorite. It is often described as "salt and pepper" when composed largely of light-colored minerals randomly interspersed with dark minerals. When olivine and more iron-rich augite are present, the rock grades into ferrodiorite, which is transitional to...
Gabbro is a dark, coarse-grained, intrusive igneous rock chemically equivalent to basalt. It is a plutonic rock, formed when molten magma is trapped beneath the Earth's surface and cools slowly into a hard, coarsely crystalline mass. It is dense, greenish or dark-colored and contains varied percentages of plagioclase feldspar, pyroxene, amphibole, and olivine (called olivine gabbro when olivine is present in large quantities). Quartz gabbros are also known to occur and are probably derived...
Syenite is a coarse-grained intrusive igneous rock of the same general composition as granite but with the quartz either absent or present in relatively small amounts. The feldspars are alkaline in character and the dark mineral is usually hornblende. Soda-lime feldspars may be present in small quantities. The term syenite was originally applied to hornblende granite like that of Syene in Egypt, from which the name is derived. Syenite is not a common rock, some of the more important...
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