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We have experience appraising single mineral specimens and very large collections.  Appraisal services include: Replacement Cost for Insurance Coverage or Insured Losses, Fair-Market Value for IRS Charitable Donations, Fair-Market Value for Asset Distributions and Divorces, and Wholesale and/or Retail Value appraisals. 
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Bob Griffis Minerals
2100 Montrose Ave #37
Montrose, CA 91021
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Calcite
Portland Mine, Pilgrim District, Lost Cabin Wash, Black Mts., Mohave County, Arizona, USA
$150
Miniature
click on photos for larger image
RG0319 Calcite from Portland Mine, Pilgrim District, Lost Cabin Wash, Black Mts., Mohave County, Arizona, USA
RG0319 Calcite from Portland Mine, Pilgrim District, Lost Cabin Wash, Black Mts., Mohave County, Arizona, USA
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49 x 29 x 23 mm overall
up to 16 x 7 mm Calcites

Several colorless, transparent Calcite crystals to 1.6 cm, surrounded by numerous smaller Calcites, are perched on gray, weathered volcanic rock matrix. These crystals strongly resemble old-time English calcite specimens. The waterclear crystals with silky luster are lightly modified hexagonal prisms with trigonal terminations. Collected in 1990 by Dick Morris and Mark Hays. The mine has been reclaimed, and only 100 flats of specimens were produced. Only peripheral damage where removed.

Specimen #  RG0319
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