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A first for Marin Mineral is this page of rough and cut sets pairing natural crystals with gemstones of the same mineral. As a mineral dealer you often times acquire broken or partial crystals with good gem sections begging to be cut. I've saved those over the years and recently had them faceted, many of which are presented below. I researched the gem values and have included the retail value of the gemstones in the descriptions in most cases. I've generally offered the gemstone AND a natural crystal for less than the retail value of the gemstone alone (or in one case the gemstone plus the crystal for the price of the crystal alone). Of note are two large faceted Jeremejevites. Please also note that all the gemstones are going to look way better in person than they do in my photographs. I hope you enjoy.
RC1 - Jeremejevite $ 2000 Ameib Ranch, Arandis, Erongo Region, Namibia thumbnail - 2 x 0.4 x 0.3 cm 
Terminated, gem quality 2cm crystal paired with a huge 3.43 carat custom cut stone with a very slight greenish coloration. Gemstone is 14mm wide and very bright. Retail value ofthe gemstone is $700 per carat ($2,401).
RC2 - Jeremejevite $ 2800 Ameib Ranch, Arandis, Erongo Region, Namibia thumbnail - 2.3 x 0.5 x 0.4 cm 
Etched, gem quality blue crystal with attached Tourmaline paired with a huge 4.48 carat custom cut stone with a good blue coloration. Cut stone is 2cm long. Retail value of the gemstone is $800 per carat ($3,584).
RC3 - Jeremejevite $ 220 Ameib Ranch, Arandis, Erongo Region, Namibia thumbnail - 1.5 x 0.3 x 0.3 cm 
Terminated, gem quality blue crystal paired with a 0.36 carat faceted gemstone with a light blue coloration. Cut stone is 6mm wide. Retail value of the gemstone is $500 per carat or $180.
RC4 - Tsavorite $ 600 Merelani Hills, Arusha Region, Tanzania thumbnail - 1 x 1 x 0.8 cm 
Gem quality crystal with top color (looks like a faceted stone itself), paired with a 0.55 carat pear-shaped gemstone, also with fine, deep green color (the dark areas in the photo is just a shadow - the stone is fully bright and lively with great color, better than photo). Retail value of the gemstone is $600 per carat ($330) and the crystal is valued at $450.
RC5 - Tsavorite $ 800 Merelani Hills, Arusha Region, Tanzania thumbnail - 1 x 1 x 0.8 cm 
Gem quality crystal with mint green color (and looks like a faceted stone itself), paired with a 1.53 carat oval gemstone, also with mint green color with a retail value of $200 per carat ($306). Flawless gem of a crystal that formed on the face of another crystal. I see no internal imperfections whatsoever. The few black flecks seen are bits of Graphite attached to the surface of the backside. All faces are flat, smooth, and lustrous except for the backside that has a few irregularites where it was attached to the another crystal. This is one crystal that really does look like a faceted gem, weight is 6 carats . The crystal alone was priced at $800, so you get the gemstone for free when you buy the pair.
RC6 - Amethyst $ 90 Goboboseb Mountains, Brandberg District, Namibia thumbnail - 2.5 x 1.5 x 1.2 cm 
Fine, deep purple Amethyst crystal paired with a 0.84 carat oval gemstone (from Brazil). The crystal has great color and internal phantoms of Amethyst are visible.
RC7 - Elbaite $ 260 Kunar Prov., Afghanistan thumbnail - 2.0 x 0.5 x 0.5 cm 
Facet grade Indicolite crystal with deep blue color paired with a 0.85 carat gemstone from the same pocket. The gemstone is 9 x 4 mm. Retail value of the gemstone is $200 per carat ($170).
RC8 - Malachite $ 100 Star of Congo Mine, Shaba Proc., Congo miniature - 4 x 2.5 x 2.5 cm 
Botryoidal masses of Malachite with sugary, crystallized surface paired with a freeform cabachon, 16.55 carats in weight and 2.2 x 1.3 cm.
RC9 - Prehnite $ 300 Merelani Hills, Arusha Region, Tanzania thumbnail - 2 x 2 x 1.5 cm 
Well crystallized yellow Prehnite with a small amount of attached Tanzanite paired with a bright yellow round gemstone from the same find, 7.70 carats in weight and 12mm wide. Retail value of the gemstone is $50 per carat ($385).
RC10 - Prehnite $ 250 Merelani Hills, Arusha Region, Tanzania thumbnail - 3 x 2 x 1.5 cm 
Well crystallized yellow Prehnite paired with a bright yellow round gemstone from the same find, 6.94 carats in weight and 12mm wide.Retail value of the gemstone is $50 per carat ($347).
RC11 - Zircon $ 120 Mashewa, Tanga Region, Tanzania thumbnail - 1.2 x 0.6 x 0.5 cm 
Gemmy and complete single crystal paired with a fine gemstone of deep wine red color, approx. 0.5 carat in weight and 6 x 4mm in size.
RC12 - Zircon $ 100 Mashewa, Tanga Region, Tanzania thumbnail - 2 x 1 x 0.8 cm 
Translucent red single crystal paired with a fine gemstone of deep wine red color, approx. 0.5 carat in weight and 6 x 3mm in size.
RC13 - Diopside $ 480 Merelani Hills, Arusha Region, Tanzania thumbnail - 1.9 x 0.8 x 0.6 cm 
Gemmy, terminated single crystal paired with a fine oval gemstone, approx. 3 carats in weight and 9 x 7mm in size.The gemstone is a fully transparent, bright mint green color way better than photo. Retail value of the gemstone is $200 per carat (approx. $600).
RC14 - Diopside $ 300 Merelani Hills, Arusha Region, Tanzania thumbnail - 2.2 x 0.7 x 0.5 cm 
Gemmy, terminated single crystal paired with a fine oval gemstone, approx. 2 carats in weight and 9 x 6mm in size.The gemstone is a fully transparent, bright mint green color way better than photo.Retail value of the gemstone is $200 per carat (approx. $400).
RC15 - Diopside $ 90 Merelani Hills, Arusha Region, Tanzania thumbnail - 1.7 x 0.9 x 0.8 cm 
Gemmy, terminated single crystal paired with a fine oval gemstone, approx. 0.25 carats in weight and 5.5 x 3.5mm in size. The gemstone is a fully transparent, bright mint green color way better than photo. ©2010 Marin Mineral |