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115 ct Fire Opal Rough from Honduras
- 存貨單位
- 尺寸(毫米)
- 51.000 x 36.500 x 13.500mm
- 重量 (cts)
- 115.000
- 類型
- Rough
- 顏色
-
-This is a piece of rough fire opal from a new finding in Honduras. -I collected several kilograms in different sizes and weighs (up to 1 kilogram). -This stone is untreated and dry. -Has good color, with some transparency. -Has fractures. -A skilled cutter will be able detach several pieces from the cracks and facet them. -All pictures are taken under natural sunlight when STONES ARE DRY. -I checked the refractive index of a polished stone and it is 1.44 to 1.45.
-In his book ‘The World of Opals’ (1997), Allan W. Eckert writes: “San Antonio area mines are most productive of a very light-colored precious fire opal that most resembles the Mexican variety (...). Other opals of this type occur at a number of locations throughout the country (...). The stones here, mainly found loose on the ground surface, have a colorless transparent center which turns to transparent citrine yellow and, finally, near the outside edges to a transparent light brownish-orange. The majority is used for faceting purposes”.
-And Tom R. Barbour, C.G. wrote in The Lapidary Journal (April 1965): “Produced by hand and as yet on a small scale, there is in Honduras opal of almost every description including all of that found in Australia (...). Because of the very difficult mountainous country with little or no roads, Honduras has not been developed. However, with the promise of roads in this country in the comparatively near future, we hope it will turn into one of the main gem and opal producing areas of the world (...). In the first group we will include common opal or, in other words, that which does not display colors when viewed in reflected light. The ‘Mexican fire opal’ type is found in several places throughout Honduras (...). This opal is found in weathered veins of from one-fourth of an inch up to six inches in width. The outside, next to the matrix, is a light orange brown turning to lighter shades then to a citrine color with a clear center. Most of this type (...) is fractured into pieces from one-half inch to about two inches of clear faceting material”.
- 存貨單位
- 尺寸(毫米)
- 51.000 x 36.500 x 13.500 mm
- 重量 (cts)
- 115.000
- 類型
- Rough
- 顏色
-
-This is a piece of rough fire opal from a new finding in Honduras. -I collected several kilograms in different sizes and weighs (up to 1 kilogram). -This stone is untreated and dry. -Has good color, with some transparency. -Has fractures. -A skilled cutter will be able detach several pieces from the cracks and facet them. -All pictures are taken under natural sunlight when STONES ARE DRY. -I checked the refractive index of a polished stone and it is 1.44 to 1.45.
-In his book ‘The World of Opals’ (1997), Allan W. Eckert writes: “San Antonio area mines are most productive of a very light-colored precious fire opal that most resembles the Mexican variety (...). Other opals of this type occur at a number of locations throughout the country (...). The stones here, mainly found loose on the ground surface, have a colorless transparent center which turns to transparent citrine yellow and, finally, near the outside edges to a transparent light brownish-orange. The majority is used for faceting purposes”.
-And Tom R. Barbour, C.G. wrote in The Lapidary Journal (April 1965): “Produced by hand and as yet on a small scale, there is in Honduras opal of almost every description including all of that found in Australia (...). Because of the very difficult mountainous country with little or no roads, Honduras has not been developed. However, with the promise of roads in this country in the comparatively near future, we hope it will turn into one of the main gem and opal producing areas of the world (...). In the first group we will include common opal or, in other words, that which does not display colors when viewed in reflected light. The ‘Mexican fire opal’ type is found in several places throughout Honduras (...). This opal is found in weathered veins of from one-fourth of an inch up to six inches in width. The outside, next to the matrix, is a light orange brown turning to lighter shades then to a citrine color with a clear center. Most of this type (...) is fractured into pieces from one-half inch to about two inches of clear faceting material”.
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Express Shipping | $10.00 / :幾天天 | $10.00 / :幾天天 |
世界其他地區
Express Shipping 對包含 2 或更多商品的訂單折扣為 $8.00
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積極的
Paid and shipped - no feedback left after 60 Days
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積極的
Timely delivery well packaged. Awesome specimen!
為什麼用戶出價高於自己?
出價時,這是用戶願意為產品出價的最高金額。然後,我們的系統將代表該用戶自動出價,逐步提高出價以保持其作為最高出價者的地位,直至達到指定的最高價。
當出現“自動出價”圖標時,表示我們的系統正在根據用戶的最高出價主動為用戶出價。這可能看起來好像用戶出價高於自己,但這只是系統更新出價以反映用戶最高限額的結果。