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File Created: 05-Feb-1997 by Dorthe E. Jakobsen (DEJ)
Last Edit:  05-Feb-1997 by Z. Dan Hora (ZDH)

Summary Help Help

NMI
Name RAVEN BLACK, GRANITE CREATIONS Mining Division Vancouver
BCGS Map 092H052
Status Past Producer NTS Map 092H12E
Latitude 049º 34' 19'' UTM 10 (NAD 83)
Longitude 121º 38' 20'' Northing 5491923
Easting 598407
Commodities Granite, Dimension Stone, Building Stone Deposit Types R03 : Dimension stone - granite
Tectonic Belt Coast Crystalline Terrane Plutonic Rocks
Capsule Geology

The Raven Black Quarry is located approximately 42 kilometres northeast of Harrison Hot Springs on Cogburn Creek road.

The owner is W. Streicek and the operator is Granite Creations and Stonework.

Large, blocky outcrops are exposed in the bottom part of a V-shaped valley. The stone is sound, lacking microfractures. The homogeneity is affected by scattered, long, 1 to 2 millimetre wide, very dark green veinlets. The anorthosite is part of the Coast Plutonic complex.

Raven Black is a medium black, medium-grained anorthosite. It has an even texture and uniform colour. The rock is comprised of plagioclase with very small amounts of biotite, chlorite and trace magnetite. It has no alteration, staining or fabric. It takes a fair to good polish (7-8/10) with some minor pitting on biotite. There are some narrow (1-2 mm), through going black to very dark green fractures, healed with chlorite, that mar the uniformity of the rock.

Bibliography
EMPR EXPL 1992, pp. 107-116; 1996-A13
EMPR FIELDWORK 1994, pp.365-369; *1996, pp.301-306
EMPR INF CIRC 1996-1, p. 10; 1997-1, p. 13
GSC MAP 1836A
Streckeisen, A. (1976): To Each Plutonic Rock its Proper Name; Earth and Science Reviews, Volume 12, pages 1-33.

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