Library

2010 February 1, Tony No comments

Bad Cuts

Badly cut CZ demonstrating diamond cutting errors

Gems of Fiction

A list of fictitious gemstones featured in literature

Gemstone Misnomers

A list of deceptive, misleading, trade and marketing names

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Some Public domain books and some useful published articles to download in pdf format

Public Domain book – 1754
A Treatise on the Ancient Method of Engraving stones.
by Laurentius Natter.1754

Public Domain book -1856
Jewelry and the Precious Stones
by Hipponax Roset.1856

Public Domain book -1860
Antique Gems. their Origin, Uses and Value.
by the Rev. C.W.King. 1860

A book. unknown author unknown year of publication
The magical properties of Crystals

Published article – 2008
SSEF Newsletter October 2008
Trade Alert:
Flux grown synthetic red spinels again on the market
by Dr. Michael S. Krzemnicki, gemlab@ssef.ch

Published article – 2009
A Question Concerning Heat-Treated Blue Sapphires
by
John I. Koivula and Alethea Inns
GIA Laboratory, Carlsbad

Published article – 2009
Comments on:
“A Question Concerning Heat–Treated Blue Sapphires,
by John I. Kovula and Alethea Inns”
by
John L. Emmett
Crystal Chemistry
Brush Prairie, WA

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The Gem Doctor Orchid Blog

Orienting a Moonstone crystal to show off the phenomena 2010 August 1,
I received this crystal from a customer with the request to facet a checkerboard brilliant oval. I am not a big fan of faceted phenomenal stones as they rarely do justice to the effects. Moonstones are especially suited to low flat cabochons which will display the adularescence optimally. High rounded cabs will have much smaller [...] […]
The Gem Doctor

Hans Meevis

Hurricane Uncle Earl 2010 August 31,
Uncle Earl in full cry.Uncle Hans in full cry. Chillin' out with a cool beer in 110 kilo wind.It doesn't look it but that rain hurts when it hits you....Little company truck got kicked. A board blew off from the next door neighbour.Ouch. And I just know the next door owner does not have insurance.My buddies restaurant sign. One roof, from the build […]
Art Jeweller

Orchid Jewellers Blogs

Congratulations to our latest Student of the Week-Ellen Jacobs 2010 September 5,
Here’s to Ellen Jacobs! This beautiful enamel is based on a famous painting. Do you recognize it? Ellen did such a wonderful job and the elegant frame setting she made really showcases her enamel. Our method here at JAI for enamel in gold is as follows. We make our enameling cups out of fine silver [...] […]
jeanettecaines
ATTA Gallery: Finally Thailand has its first Contemporary Art Jewelry 2010 September 5,
It’s about time Thailand ventures into the world of contemporary art jewelry. ATTA Gallery opened its door to jewelry lovers in August 2010. It is the first and only gallery of its kind in Thailand specializing in contemporary art jewelry. ATTA Gallery exhibits and carries works of new talent and established, local and international artists. ATTA Gallery [ […]
atty
Hello world! 2010 September 5,
[…]
nickjohnson
Open House at ATTA Gallery 2010 September 4,
Come mingle with local jewelry artists and designers at ATTA Gallery’s Open House on Thursday September 9, 2010 from 18:00-20:00. Wear your favorite cocktail ring(s), bling or no bling, and come join us for a drink or two while chitchatting about contemporary art jewelry in Thailand! More info on how to get to the gallery, go to [...] […]
atinuj
regularly scheduled program coming soon. 2010 September 4,
As many of you already know I am in the act of moving my studio. I am ever so excited to get out of the basement and into a sun filled room. Until this new space becomes home to k.o’brien jewelry I won’t be posting regularly. Really, I won’t be doing anything regularly as this [...] […]
k.o'brien jewelry

HubbleSite Daily Image

Comet LINEAR's Violent Outburst

Comet LINEAR's Violent Outburst

Credits: NASA, H. Weaver and P. Feldman (Johns Hopkins University), M. A'Hearn (University of Maryland), C. Arpigny (Liege University), M. Combi (University of Michigan), M. Festou (Observatoire Midi-Pyrenees), and G.-P. Tozzi (Arcetri Observatory)

A Chameleon Sky

The sands of time are running out for the central star of this the Hourglass Nebula. With its nuclear fuel exhausted, this brief, spectacular, closing phase of a sun-like star's life occurs as its outer layers are ejected and its core becomes a cooling, fading white dwarf. In 1995, astronomers used the Hubble Space Telescope to make a series of images of planetary nebulae, including the one above. Here, delicate rings of colorful glowing gas (nitrogen-red, hydrogen-green, and oxygen-blue) outline the tenuous walls of the 'hourglass.' The unprecedented sharpness of Hubble's images revealed surprising details of the nebula ejection process and may resolve the outstanding mystery of the variety of complex shapes and symmetries of planetary nebulae. Image Credit: NASA, WFPC2, HST, R. Sahai and J. Trauger (JPL)
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