all about Crystal Quartz Family

fLy.gOnE

02-08-2015 11:00

#114

apakah blue quartz itu ada ?

mungkin sebagian dari kita yang saat ini memiliki batu yang menurut orang kalimantan adalah kecubung biru dan ternyata setelah dimemokan ternyata di identifikasi sebagai aquamarine atau topaz. kenapa begitu ? anda tidak percaya dengan lab yang mengidentifikasi batu anda ? mungkin ada diantara sebagian dari kita bertanya tanya lalu mencari artikel tentang blue quartz di internet namun sampai detik ini juga tidak menemukannya.. sama emoticon-Peace

saya juga penasaran. oleh karena itu akhirnya saya memutuskan untuk bertanya kepada staff GIA. emoticon-Peace

dan inilah email yang dikirimkan kepada saya. semoga saja bisa berguna bagi kita semua emoticon-Smilie

Quote:

There is no blue quartz.
Chalcedony….yes. Quartz…..no. It might be either aquamarine or blue topaz. Send it to a gemological lab for testing to get the correct identity. If it’s quartz, then it would be something new. But to date, there is no blue quartz that I’m aware of.

dan ini adalah email keduanya untuk menjelaskan kepada saya lebih detail

Quote:

As far as I know…..there is no blue quartz. However, chalcedony is a cryptocrystalline quartz. That means it’s made up of millions of small minute crystals that are randomly oriented. Citrine and amethyst are not cryptocrystalline. They are single crystals. There is a variety or chalcedony called chrysocolla. Chrysocolla is a light blue or bluish green. It is natural; not treated. But it’s internal structure is cryptocrystalline.
If you think you have a single crystal, blue quartz, then you should send it to a lab for identification. They will tell you if it’s quartz or not and if it been treated to get that color.

yang saya bold diperhatikan ya gan emoticon-Peace

jadi ada kemungkinan di treatment. tp menurut saya yang paling mungkin adalah dengan coated emoticon-Smilie

lantas bagaimanakah dengan beberapa sumber lain yang cukup kredibel mengenai blue quartz ?

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So far no quartz that is blue because of color centers, similar to those found in amethyst or smoky quartz, has been found in nature. Amethyst from certain mines in Brazil will partially or completely turn blue on special treatment.
Some would say that the term "blue quartz" is reserved for rock crystal that appears blue by Rayleigh scattering. This, however, is the rarest form of blue quartz, and there is also a common denominator between all three forms: the color is caused by inclusions of other minerals, and not by built-in trace elements and/or lattice defects, like in amethyst, for example.

sumber

ternyata sama. belum ditemukan varietas quartz yang memiliki warna biru yang asli terkandung didalam batu tersebut, yang selama ini di sebut blue quartz rata rata merupakan warna dari inklusi atau warna dari proses yang dibuat oleh manusia.

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Blue Quartz
The blue variety of Quartz, which is uncommon in nature, is seldom used as a gemstone. Most "Blue Quartz" is clear Rock Crystal irradiated with gold to from a deep sky blue color. Blue Quartz may also refer to a dull grayish-blue Quartz in massive form with Crocidolite inclusions.
Blue Quartz - Rare natural blue variety of Quartz. It is caused by inclusions of blue minerals, especially Dumortierite. Most "Blue Quartz" is what is popularly known as "Aqua Aura", essentially clear Rock Crystal synthetically irradiated with gold to form a deep sky blue color. Blue Quartz may also refer to a dull grayish-blue Quartz in massive form with Crocidolite inclusions.

sumber

ternyata sama. rata rata yang dinamakan blue quartz adalah kecubung putih yang di treatment dengan radiasi untuk menghasilkan warna biru langit atau disebabkan inklusi dari mineral crociodolite

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Blue Quartz :
A variety of Quartz
An opaque to translucent, blue variety of quartz, owing its colour to inclusions, commonly of fibrous magnesioriebeckite or crocidolite. The color may be caused by the color of the included minerals or by Rayleigh scattering of light at microscopic inclusions.
The term is sometimes also used for massive quartzite with inclusions of blue minerals.

sumber

sama. deskripsi di website mindat merujuk pada warna yang dihasilkan akibat inklusi dari mineral magnesioriebeckite or crocidolite

dibawah ini adalah beberapa koleksi kaskuser yang dinamakan oleh pasar sebagai kecubung biru :

Spoiler for aminardi ketapang:

Quote:

pemilik aminardi, origin manismata

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Original Posted By jeefrysa►

Spoiler for yg ga terlalu blue:

semoga informasi ini berguna bagi kita semua emoticon-Angkat Beer

Diubah oleh fLy.gOnE 25-11-2015 16:19

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