Provenite

Lake George (Park County)

AreaDraft data

38.9797° N, 105.3575° W · ± 10 km

Microcline from Colorado, United States, with photos of specimens from this locality.

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Minerals found here

Microcline

On the same specimen

Same specimen Quartz with Microcline

1 specimen photo(s) from this locality show microcline with quartz together. The pairing comes from the photographer's file name and label, so the relationship between the two minerals is not specified.

Same specimen Albite with Microcline

2 specimen photo(s) from this locality show microcline with albite together. The pairing comes from the photographer's file name and label, so the relationship between the two minerals is not specified.

Microcline at Lake George (Park County)

Intergrown turquoise amazonite crystals with two smoky quartz crystals, Kosnar claim, Lake George.
Intergrown turquoise amazonite crystals with two smoky quartz crystals, Kosnar claim, Lake George.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Complete amazonite thumbnail crystal with albite, Kosnar claim, Park County.
Complete amazonite thumbnail crystal with albite, Kosnar claim, Park County.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Blue-green amazonite crystal with a white cap, Kosnar claim, Lake George.
Blue-green amazonite crystal with a white cap, Kosnar claim, Lake George.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Striped amazonite crystal with white bands on certain faces, Lake George.
Striped amazonite crystal with white bands on certain faces, Lake George.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
White-capped amazonite crystal from the Lake George area.
White-capped amazonite crystal from the Lake George area.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Formula
KAlSi₃O₈
Morphology
Sharp prismatic amazonite crystals and small groups, some with a white 'cap' or white stripes on certain faces
Typical size
Crystals about 1.5 to 9 cm
Color / luster
Amazonite: robin's-egg blue to turquoise blue-green
Associated minerals
Smoky quartzalbitefluorite
Surface features
White microcline caps or stripes on some faces
Availability
Unknown
History
R. A. Kosnar mined amazonite on his claim here in 1976

Sources: SRC-562 SRC-574

About Microcline →

Geology of the locality

Region
Colorado
Country
United States

Town coordinates from Wikipedia. Several photographed specimens come from the R. A. Kosnar claim (Yucca Hill, Stevens Ranch) near Lake George, whose exact position was not found.

Sources: SRC-565

Sources

  1. SRC-565 · Website
    Lake George, ColoradoWikipedia contributors · Wikipedia
  2. SRC-562 · Website
    AmazoniteWikipedia contributors · Wikipedia
  3. SRC-574 · Website
    File:Microcline-Quartz-158840.jpgRobert M. Lavinsky · Wikimedia Commons

Draft data from the Provenite workbook. Check entries against the cited sources before relying on them. Photos are open-licence images from Wikimedia Commons; the author and licence are given with each photo.