Dumortierite rough from Indian Pass, California, USA, dark blue opaque lapidary-grade material
Dumortierite rough from Indian Pass, California, USA, desert-weathered exterior over solid blue interior
Dumortierite rough from Indian Pass, California, USA, cutting rough with minimal cracks for cabochons
Dumortierite rough from Indian Pass, California, USA, natural untreated dumortierite, Mohs hardness 8
Dumortierite rough from Indian Pass, California, USA, borosilicate mineral rough sold by weight
Dumortierite rough from Indian Pass, California, USA, dark blue to purple tones for lapidary work
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Dumortierite rough from Indian Pass, California, USA, dark blue opaque lapidary-grade material
Dumortierite rough from Indian Pass, California, USA, desert-weathered exterior over solid blue interior
Dumortierite rough from Indian Pass, California, USA, cutting rough with minimal cracks for cabochons
Dumortierite rough from Indian Pass, California, USA, natural untreated dumortierite, Mohs hardness 8
Dumortierite rough from Indian Pass, California, USA, borosilicate mineral rough sold by weight
Dumortierite rough from Indian Pass, California, USA, dark blue to purple tones for lapidary work

Dumortierite - Rough

California, U.S.A.
Price per: Gram
Price :
$0.15 CAD
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Specifications

  • Mohs Hardness 8
  • Mineral Families Silicates
  • UV Reactive Non Reactive
  • Treatments Natural/None

Description

Locality: Indian Pass, California, U.S.A.

Description: This stone is very dark blue, sometimes ranging through to purple. Entirely opaque. The exterior is weathered from the California desert, but the inside is a nice blue colour. There are very few cracks.

Chemical Composition: Al7BO3(SiO4)3O3

Grade: Lapidary Grade
Appearance: Opaque
Inclusions: Cracks are minimal and nothing to be concerned with in this rock.

Cost per Gram: $0.15
Approximate size for 1pc: 10cm x 8cm x 4cm
Approximate weight of 1 pc: 100-300g

Rough is rough. We do our best to grade and describe pieces in the lot, but ultimately, they all differ.

Watch us dig at this locality: Rockhounding Indian Pass Dumortierite || California, USA

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