Summer 2015 - Volume 51, Issue 2
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Diamond-bearing eclogite xenoliths from the Ardo So Ver dykes.
Diamond-Bearing Eclogite Xenoliths from the Ardo So Ver Dykes

Mineralogical examination of diamond-bearing material from South Africa reveals the specimens to be eclogite xenoliths.

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Gem Mountain mining site
Update on Rock Creek Sapphire Deposit

An overview of recently expanded sapphire production at the Gem Mountain mine near Philipsburg, Montana.

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Pegmatite body at the Havey Quarry in Maine.
Maine Pegmatite Workshop

A report summarizing the expeditions and lectures at the June 2015 pegmatite workshop in Poland, Maine.

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A unique parti-color Brazilian tourmaline necklace.
Unique Tourmaline Necklace

An unusual parti-color tourmaline necklace and clasp are seen at the 2015 AGTA show in Tucson.

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The Crimson Prince ruby shows exceptional color and clarity.
Crimson Prince Ruby from Namya

An exceptional ruby is discovered in Namya, Myanmar.

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Hummingbird brooch with a baroque pearl surrounded by diamonds.
Baroque Pearls

Baroque pearls were ubiquitous at the Tucson 2015 gem shows.

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A selection of demantoid from Namibia’s Green Dragon mine.
Large Namibian Demantoid Garnet

The Green Dragon mine yields exceptional demantoid, including a round brilliant seen at Tucson’s GJX show.

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Award-winning diamond slice earrings.
Diamond Slices

The popularity of gem slices, particularly diamond, is on the rise, as reflected at the 2015 Tucson gem shows.

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This specimen was revealed to be a synthetic star sapphire.
Unusual Combination of Inclusions in Synthetic Star Sapphire

A hexagonal boundary, usually found in natural material, is observed in a synthetic star sapphire.

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This specimen was revealed to be a synthetic star sapphire.
Synthetic Sapphire with Diffusion-Induced Color and Star

Diffusion treatment is used to induce color and asterism in a colorless synthetic sapphire.

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