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Andesine Beads

Natural-colored Cu-bearing plagioclase feldspar (andesine) is mined in Inner Mongolia. The gem-quality feldspar is derived from Quaternary-Tertiary volcano-sediments related to Jurassic-Cretaceous volcanic rocks. Most of the crystals have an orangy red color, and a few have red and green  zones. Natural copper-bearing andesine is an unusual gem that is prized for its color and rarity. There has been widespread suspicion that the Chinese red andesine is diffusion-treated. After much investigation of the mines in Tibet and Inner Mongolia, the authenticity of the andesine was confirmed.


Gem Type
Gem Shape
Size Range
Price

16 products found in Andesine Beads

10x7-13x9mm Andesine Faceted Pear Beads 7.5 inch 20 pieces
# 425064
  • $145.00
8-10mm Andesine Faceted Heart Beads 8 inch 21 pieces
# 425066
  • $100.00
11-16mm Andesine Faceted Heart Beads 8 inch 15 pieces
# 425065
  • $155.00
7x6-15x10mm Andesine Plain Nugget Beads 16 inch 40 pieces
# 12782
  • $140.00
8x7-10x7mm Andesine Plain Pear Beads 8 inch 48 pieces
# 41660
  • $85.00
8x6-10x7mm Andesine Top Drilled Faceted Rectangle Beads 8 inch 28 pieces
# 41659
  • $82.00
3mm Shaded Andesine Faceted Rondelle Beads 12.5 inch 178 pieces
# 41656
  • $50.00
4.5mm Shaded Andesine Faceted Rondelle Beads 13 inch 140 pieces
# 41658
  • $55.00
6.5-10mm Andesine Faceted Rondelle Beads 18 inch 97 pieces
# 19868
  • $317.00
5x4-15x8mm Dark Andesine plain nuggets 18 inches 48 pieces
# 12781
  • $130.00
3.5-5.5mm Andesine plain rondelle beads 18 inch 185 pieces 1mm large hole A
# 21477
  • $166.00
3.5-6mm Andesine plain rondelle beads 18 inch 166 pieces A
# 12123
  • $88.00
3-6mm Andesine plain rondelle beads 18 inch 180 pieces
# 19873
  • $102.00
7-10mm Andesine faceted rondelle beads 18 inch 94 pieces AA
# 18130
  • $326.00
2.5-5mm Andesine Faceted Rondelle Beads 18 inch 210 pieces
# 12125
  • $72.00
6.5-10mm Andesine Faceted Rondelle Beads 18 inch 100 pieces
# 19867
  • $306.00