Stock Image
Image Not Available

Beautiful Opals: Australia's National GEM

Cram, Len

1 ratings by Goodreads
ISBN 10: 186273075X / ISBN 13: 9781862730755
Published by Robert Brown & Associates, Coorparoo D.C., QLD, Australia, 1994
Soft cover
From Ground Zero Books, Ltd. (Silver Spring, MD, U.S.A.)

AbeBooks Seller Since August 14, 1998 Seller Rating 4-star rating

Quantity Available: 1

Buy Used
Price: US$ 45.00 Convert Currency
Shipping: US$ 5.00 Within U.S.A. Destination, rates & speeds
Add to basket

30 Day Return Policy

About this Item

80, [4] pages. Illustrations (many in color). Map On July 28, 1993 the opal was proclaimed by the Australian National Government as Australia's national gemstone. Excerpts from an on-line posting: "For artist, historian, novelist and opal miner Len Cram the ability to capture this moment was a long process and one he still strives to create. Creating non-commercial opals synthetically in his tin shed has raised eyebrows for geologists but for Len it was journey of discovery in learning everything there is to know about his life s passion; opals. Studying them for over 60 years and sharing his research and knowledge on the topic through over 25 books.Len seems to see it less about passion and more about preserving and capturing the illustrious history of Australia s national gemstone. Although aware of the knowledge that he holds, Len reiterates that he s not trying to boast but at its core he was trying to create a well of knowledge for future generations to draw from. "I suppose for a lot of people it s not important but to me it was and a lot of it s gone. A lot of those people are dead but I ve got them all on audio tape. I interviewed over 100 people from all the opal mines across Australia and got their stories and now a lot of them are gone. From Wikipedia: "Opal is a hydrated amorphous form of silica; its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Because of its amorphous character, it is classed as a mineraloid, unlike the other crystalline forms of silica, which are classed as minerals. It is deposited at a relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, marl, and basalt. Opal is the national gemstone of Australia. Australian opal has often been cited as accounting for 95-97% of the world's supply of precious opal, with the state of South Australia accounting for 80% of the world's supply. The internal structure of precious opal makes it diffract light; depending on the conditions in which it formed, it can take on many colors. Precious opal ranges from clear through white, gray, red, orange, yellow, green, blue, magenta, rose, pink, slate, olive, brown, and black. Of these hues, the reds against black are the most rare, whereas white and greens are the most common. It varies in optical density from opaque to semitransparent." Very good. Signed by author. Signed and dated on half-title. Bookseller Inventory # 69184

Ask Seller a Question

Bibliographic Details

Title: Beautiful Opals: Australia's National GEM

Publisher: Robert Brown & Associates, Coorparoo D.C., QLD, Australia

Publication Date: 1994

Binding: Trade paperback

Signed: Signed by Author(s)

Edition: Special Collectors' Edition.

About this title

Synopsis:

full color large format paperback showcasing the Black Opal,Boulder Opal and Light Opal.

"About this title" may belong to another edition of this title.

Store Description

Founded and operated by trained historians, Ground Zero Books, Ltd., serves the book collector, the scholar, and institutions. We focus on the individual, and pride ourselves on our personal service. Please contact us with your wants, as we have many books not yet listed in our database.

Visit Seller's Storefront

Terms of Sale:

Books are subject to prior sale. Please ask us to hold a book for you before you
mail your check. Books are returnable within 7 days, if not satisfactory. MD
residents add 6% state sales tax.
The mailing address for Ground Zero Books, Ltd. (a subchapter-S corporation) is
P.O. Box 8369, Silver Spring, MD 20907-8369. You can reach us by phone at 301-
585-1471, by fax at 301-920-0253, or by e-mail at gzbooksltd@aol.com. Ground Zero
Books, Ltd., is owned & operated by R. Alan Lewis & Lynne Haims.


Shipping Terms:

Orders usually ship within 2 business days. Shipping costs are based on books
weighing 2.2 LB, or 1 KG. If your book order is heavy or oversized, we may contact
you to let you know extra shipping is required.

List this Seller's Books

Payment Methods
accepted by seller

Visa Mastercard American Express

Check Money Order PayPal Invoice