Cyanotrichite & Brochantite Grand View Mine, Horseshoe Mesa,...
Cyanotrichite & Brochantite Grand View Mine, Horseshoe Mesa, Grand Canyon, Coconino Co., Arizona, USA "A shallow vug in a "limonite matrix" lined with dark green micro brochantite crystals with some tufts of blue cyanotrichite growing on it. The specimen was collected by Bob Bartsch. I got the specimen when I was willed his mineral collection after his death. The suite of specimens that he collected at that time is I am sure the finest group of specimens remaining from the mine, and possibly the finest ever from this small mine. The specimen should be kept in a dust free container and not put on display. The scale under the specimen is an inch with a rule at one cm." - Rock H. Currier Arguably the Grand View Mine is the source of the best-looking Cyanotrichite specimens ever found. Unfortunately, the mine is now on public lands where collecting is verboten. Seems like any locality on public lands capable of producing anything other than mud, sand or gravel, has a ranger parked on it, dedicated to checking your: car, backpack, or pockets, for evidence of 'conspiracy to collect'. Quite a shame: Cyanotrichite is a very beautiful mineral and there is very little of it available ... but there is this one - one that Bob Bartsch so skillfully collected many, many, years ago. Overall Measurements: 3.0 x 2.8 x 1.2 inches (7.5 x 7.0 x 3.0 cm) Offered at no reserve Provenance: Ex. Robert Bartsch Collection [RHC #9165, acquired March 2015] MinID 01G-LX2 [Scale: 1 inch, with mark at 1 cm]
HID09710052018
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Cyanotrichite & Brochantite Grand View Mine, Horseshoe Mesa, Grand Canyon, Coconino Co., Arizona, USA "A shallow vug in a "limonite matrix" lined with dark green micro brochantite crystals with some tufts of blue cyanotrichite growing on it. The specimen was collected by Bob Bartsch. I got the specimen when I was willed his mineral collection after his death. The suite of specimens that he collected at that time is I am sure the finest group of specimens remaining from the mine, and possibly the finest ever from this small mine. The specimen should be kept in a dust free container and not put on display. The scale under the specimen is an inch with a rule at one cm." - Rock H. Currier Arguably the Grand View Mine is the source of the best-looking Cyanotrichite specimens ever found. Unfortunately, the mine is now on public lands where collecting is verboten. Seems like any locality on public lands capable of producing anything other than mud, sand or gravel, has a ranger parked on it, dedicated to checking your: car, backpack, or pockets, for evidence of 'conspiracy to collect'. Quite a shame: Cyanotrichite is a very beautiful mineral and there is very little of it available ... but there is this one - one that Bob Bartsch so skillfully collected many, many, years ago. Overall Measurements: 3.0 x 2.8 x 1.2 inches (7.5 x 7.0 x 3.0 cm) Offered at no reserve Provenance: Ex. Robert Bartsch Collection [RHC #9165, acquired March 2015] MinID 01G-LX2 [Scale: 1 inch, with mark at 1 cm]
HID09710052018
© 2019 Heritage Auctions | All Rights Reserved
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