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Gem Quiz

Gem Quiz: Without This Stone, You’d Be Standing on Shaky Ground

Me, and my cousins, make up much of the earth’s crust.

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INSTORE plagioclase feldspar 1

I am the most common of the feldspar minerals, which, as you know, make up the bulk of the Earth’s crust. So without us, and me in particular, you’d be standing on pretty shaky ground. My name is derived from the Greek for “oblique fracture” (in reference to my two cleavage angles), and unlike my glassy cousins, the potassium feldspars, I am known for my high refractivity. Yes, light — and time — slow when they meet me.

Who am I?

Guess this gem for a chance to win a “Jewelry Geek” T-shirt. Be sure to include your full name and the name and address of your store. The contest winner will be selected from among correct answers to this question.

Chris Burslem is Group Managing Editor at SmartWork Media.

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Gem Quiz

This Gem’s Name Is a Tribute to Another Luscious Red Stone

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THERE’S AN EGYPTIAN legend that when my family made its way to the surface of the earth we passed over a rainbow and in doing so took on all the colors of the spectrum. That worked well for me because not only did I land red, but it’s a glorious lush strawberry red (at my best) that earned me my own moniker — a tribute of sorts to another fine gemstone. Of course, man being man, someone figured he could improve on nature, and I am now often irradiated, something that didn’t go down well in the market in the first few years.

Who am I?

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Gem Quiz

Gem Quiz: I’m a Gem That Comes Alive at Night

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I HAVE BEEN CALLED evening stone because of my intense dislike of sunlight — it does the most terrible things to my coloring, which is usually of a most tender and feminine pink hue. Discovered in 1902 in Southern California (a place that is really too warm for my liking), I was named after a particularly distinguished jeweler and mineralogist from Tiffany’s in New York (ah, New York, a much more pleasant clime). My perfect cleavage makes me a challenge for gem cutters, but if they know what they’re doing they can make my deepest colors shine. Yes, colors with an “s” — I am strongly pleochroic.

Who am I?

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Gem Quiz

Here’s the Answer to November’s Gem Quiz

A Minneapolis gallery manager is our winner this month.

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THE WINNER of our November Gem Quiz was Elaine Palmer, gallery manager at Stephen Vincent Design in Minneapolis, MN, who correctly deduced the gemstone was diaspore. Well done, Elaine (who, if you’re wondering, is wearing all Yossi Harari jewelry in this photo), and all those who made it to our Honorable Mentions list below.

Stuart Adelman
Artelle Designs
Plymouth, MN

Derrick Allen
Graham Jewelers
Wayzata, MN

Caroline Berrettini
Caroline W Berrettini Gemologist, LLC
West Hartford, CT

Jeff Briceland
Thom Duma Jewelers
Warren, OH

Sally Davis
Vierk’s Fine Jewelry
Lafayette, IN

Anna Crosby
Starblaze Jewelers
Tucker, GA

Dan Deans
Asurion
Sterling, VA

Vilija Folger
Gem Zone
New Hope, PA

Dena Forte
QVC/HSN
St. Petersburg, FL

Steve Gallagher

Steve Glazer
Windsor Jewelers
Charlotte, NC

Jonathan Hart
Karen’s Jewelers
Oak Ridge, TN

Kim Hatchell
Galloway & Moseley
Sumter, SC

Anne Henderson
Henderson and Co Jewelers
Mechanicsburg, PA

David Hermann
Appraisals Fine Jewelry
Longwood, FL

Gary Hurdle
Casa de Oro
Corpus Christi, TX

Kathy Jenkins
Bravo Jewellers
Carlsbad, CA

Veronica Kelly
Mulloys Fine Jewelry
Carlsbad CA

Karen Kuhn
Arabesque Jewelers, Inc.
High Ridge, MO

Doug Lantz
MJ Harrington Jewelers
Hanover, NH

Rika Larson
The Collector Fine Jewelry
Fallbrook, CA

Troy Lob
Liberty Diamonds
Irvine, CA

Marissa Lockwood
Austin’s Fine Jewelry
Las Cruces, NM

Robert Lurie
Robert Lurie Jewellery Evaluator
Milnerton, Cape Town, South Africa

Patrick McNeill
Garwood’s Jewelers
Fort Collins, CO

Paula Morgan
TravelWares
Hollywood, FL

Steffanie O’Sulliva
Abbott Taylor Jewelers
Tucson, AZ

Phyllis Painter
Lesley Ann Jewels
Houston, TX

Brennan Richardson
Richardson Jewelers
Escanaba, MI

Karen Schmitt
Straith’s Jewelers
Centralia, IL

Abigail Simpson
Darvier Custom Jewelry
Fort Collins, CO

Noel Slack
G. Allan Jewelers
Minneapolis, MN

Katrina Sustachek
Rasmussen Diamonds
Racine, WI

Diane Thielker
Romm Diamonds
Brockton, MA

George Ward
Ward’s Jewelers
Bonsall, CA

Sherry Yarnal
Yarnal Jewelers
Castro Valley, CA

Robert Young
Robert Young Jeweler Extraordinaire
Belleair Bluffs, FL

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