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Blue Quartz


Natural blue quartz is either coloured by inclusions (e.g. lapis lazuli, blue tourmaline, crocidolite fibres [so-called sapphire-quartz], lazurite etc...) or by a tyndall diffusion on tiny white fibres of usually tourmaline (such as found in the Swiss Alps). These stones are usually opaque to translucent due to the micro-inclusions of the blue minerals. Current knowledge does not know of completely transparent natural blue quartz with really blue *bodycolour*.

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Introduction and History
Picture above: Reputed for the iridescence matched only by the best black opals, ammolites have quickly become popular items for making brooches, pendants or earrings.

These are fossilised and mineralised ammonite shell(resembles a nautilus shell), or casts of the interior of the shell. Chemical composition is variable often aragonite, calcite, pyrite, but often replaced by Silica and Argonite to produce an "Opal-like" look; of which the most beautiful specimens rival the likes of opals.

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Ametrine, Quartz Variety

Masses of synthetic quartz that are in the market.

Ametrine quartzes are partly colored by Fe4+ (Fe3+ oxidized to Fe4+ by irradiation)
(Ametrine) and partly by Fe3+ (Citrine); this quartz variety exists naturally (from the Anahí Mine in Santa Cruz, Bolivia, or, rarely Brazil and India), but can be created by differential heat treatment of amethyst quartz or can finally be grown synthetically by the hydrothermal synthesis.

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Amber and Copal

Copal was sacred to the Pre-Columbian Maya of Southern Mexico and Guatemala.
It was burnt as an offering to their Gods.  The earliest written record of its use that I am aware of is the Popol Vuh, the sacred book of the ancient Quiche Maya recorded in the 16th century (University of Oklahoma Press, Norman).  Another historical book, Libro de Chilam Balam de Chumayel (Book of the jaguar priests of Chumayel) may also reference the use of Copal.

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Introduction and History

Million years ago large stands of forests in some parts of the world began to seep globs of sticky resin! This aromatic resin oozed down the sides of trees, as well as filling internal fissures, trapping debris, such as seeds, leaves, feathers and insects.

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Who are we?

The Geohavens name is an assurance of timeless beauty, distinct quality and uncompromising value. The Company spares no effort in sourcing from the farthest markets and the deepest mines in order to unearth the most attractive gems.

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