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BERYL ROUGH CRYSTAL -BRAZIL 27.55 CT [F3003]
- UGS
- Dimensions (mm)
- 42.000 x 8.000 x 4.000mm
- Poids (cts)
- 27.550
- Taper
- Rough
- Couleurs
-
QUALITY ROUGH
BERYL ROUGH
This is a natural untreated rough of beryl mined in Brazil.
PHYSICAL CHARACTERISTICS:
- Color is varied and includes emerald green, blue to blue-green, yellow, greenish-gold, red, colorless and pink.
- Luster is vitreous.
- Transparency: Crystals are transparent to translucent.
- Crystal System is hexagonal; 6/m 2/m 2/m
- Crystal Habits typically include the hexagonal prism with pincoid terminations. The terminations are often modified by many different pyramidal faces which can sometimes produce a rounded termination in the rough shape of a used pencil eraser.
- Cleavage is imperfect in one direction (basal).
- Fracture is conchoidal.
- Hardness is 7.5 - 8.
- Specific Gravity is approximately 2.6 - 2.9 (average)
- Streak is white.
- Other Characteristics: Faces on large crystals are often pitted, striated lengthwise and rough.
- Associated Minerals include micas, quartz, euclase, calcite, tourmalines and some feldspars.
- Notable Occurrences include Colombia and some African localities for emerald; Brazil, Russia and Pakistan for aquamarine; California, Brazil, Africa, and many other localities for other beryls.
- Best Field Indicators are crystal habit, lack of good cleavage, hardness and color.
- UGS
- Dimensions (mm)
- 42.000 x 8.000 x 4.000 mm
- Poids (cts)
- 27.550
- Taper
- Rough
- Couleurs
-
QUALITY ROUGH
BERYL ROUGH
This is a natural untreated rough of beryl mined in Brazil.
PHYSICAL CHARACTERISTICS:
- Color is varied and includes emerald green, blue to blue-green, yellow, greenish-gold, red, colorless and pink.
- Luster is vitreous.
- Transparency: Crystals are transparent to translucent.
- Crystal System is hexagonal; 6/m 2/m 2/m
- Crystal Habits typically include the hexagonal prism with pincoid terminations. The terminations are often modified by many different pyramidal faces which can sometimes produce a rounded termination in the rough shape of a used pencil eraser.
- Cleavage is imperfect in one direction (basal).
- Fracture is conchoidal.
- Hardness is 7.5 - 8.
- Specific Gravity is approximately 2.6 - 2.9 (average)
- Streak is white.
- Other Characteristics: Faces on large crystals are often pitted, striated lengthwise and rough.
- Associated Minerals include micas, quartz, euclase, calcite, tourmalines and some feldspars.
- Notable Occurrences include Colombia and some African localities for emerald; Brazil, Russia and Pakistan for aquamarine; California, Brazil, Africa, and many other localities for other beryls.
- Best Field Indicators are crystal habit, lack of good cleavage, hardness and color.
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PositifBeautiful agate piece , and as always fast efficient service from Sedagems
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Positif
Nice
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Positif
Gorgeous stones, very happy
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Positif
Gorgeous stone, very happy
![22.9CTS VARASCITE 'SPIDER WEB' AUSTRALIA [MGW 4616]](https://liveplatforms-production.b-cdn.net/tenants/gr/uploads/images/490000-494999/490866/55236df10a48f.JPG?width=480&aspect_ratio=1001%3A1000)
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Comments
The Verified Seller responsible for this item has diligently provided us with accurate and comprehensive information, encompassing crucial details such as weight, dimensions, and treatment. It is important to reiterate our commitment to upholding the highest standards of integrity and transparency in the gemstone industry. As part of our policy, we strictly permit the sale of exclusively natural gemstones that have been sourced directly from the Earth. However, in the event that a gemstone has undergone any form of treatment, it is mandatory for the seller to provide full disclosure regarding the treatment process. Furthermore, we would like to emphasize that man-made gemstones, including simulants and imitations, are strictly prohibited on our platform. We prioritize the promotion of authentic, natural gemstones to ensure a genuine and trustworthy marketplace for our valued customers. Should you have any further inquiries or require additional assistance, please do not hesitate to reach out. We are here to assist you and provide a seamless experience on Gem Rock Auctions.
