Topaz 925 silver Pendant - Height: 2 cm - Width: 1.7 cm- 3 g - (1)

Natural blue topaz rough in the raw – 3 g crystal – artisan claw-set pendant – unique piece

1. Overview
Pendant made around a rough blue topaz crystal, deliberately preserving its natural morphology and original irregularities. The stone has not been transformed into a conventional cabochon: here the interest lies precisely in showing the mineral as it presents in crystalline state, with relief, natural fractures, and irregular transparency.

The original label that accompanies the piece explicitly identifies the specimen as “Blue Topaz Rough” and notes a weight of 3 grams for the mineral.

2. Measurements and weight
Mineral: approximately 3 g, according to the original label.
Shape: irregular rough crystal.
Color: light sky blue.
Transparency: translucent to partially transparent.
Open mounting with claws.
Small surface variations, growth planes and visible fractures correspond to the natural character of an uncut crystal.

3. Mineralogical identification
Mineral: Topaz.
Variety: Blue topaz.
Group: Silicates, specifically nesosilicates.

Topaz is a mineral valued in gemology for its combination of hardness, transparency, and well-defined crystal structure.

4. Chemical composition
Its general formula is:

Al₂SiO₄(F,OH)₂

It is an aluminum fluorosilicate in which the relative proportions of fluorine and hydroxyl groups can vary.

5. Physical and gemological properties
Crystal system: orthorhombic.
Hardness: 8 on the Mohs scale.
Density: approximately 3.49–3.57 g/cm³.
Luster: vitreous.
Cleavage: perfect in one direction.
Refractive index: approximately 1.61–1.64.
Streak: white.
Its high hardness makes topaz a resistant-to-scratching gem, though its cleavage requires protection from strong blows.

6. Visual reading of the piece
The specimen presents a pleasing light blue tone, with areas of transparency and others slightly more milky. The irregular surfaces allow direct observation of the crystal’s natural structure.

Its aesthetic value precisely stems from what a cut stone usually eliminates: irregularity, volume, texture, and evidence of mineral formation.

Each piece is unrepeatable. No two natural crystals have exactly the same geometry, internal fractures, or color distribution.

7. History and gemological curiosities
Topaz has a long history as an ornamental gemstone. For centuries, various yellow stones were incorrectly called “topaz” before the development of modern mineralogy.

An especially important market fact is that intense blue topaz is commonly colored by irradiation and subsequent heat treatment of colorless or very pale topaz. These treatments are widely accepted in the gemological trade.

In this piece, without specific instrumental analysis of the color origin, no claim is made regarding absence of treatment.

8. Mounting and craftwork
The stone is held by open metal claws, a solution particularly suitable for a rough crystal because it avoids concealing it inside a closed mounting.

The setting follows the mineral’s irregularities and leaves visible both the front and much of the back.

Important: the attachment of this piece is NOT of the “buche” type. It is a conventional articulated hook attached to the mounting by a ring.

9. Authenticity and analysis
The specimen retains an original label identifying it as:

“Blue Topaz Rough – 3 Grams”

Visual identification is compatible with blue rough topaz, but the piece is not offered with a laboratory gemological certificate.

In our methodology we clearly distinguish between reasoned identification and official certification. In a market where there are also glass, synthetic materials, and imprecise commercial terms, this distinction is essential.

10. Condition and provenance
Piece in stock, unused, from previous stock.

It presents the irregularities, small fractures, and marks typical of a raw mineral crystal. They should not be mistaken for later damage: they are part of its nature and aesthetics.

The specific country of extraction cannot be determined solely by photography or appearance, so no geographic origin is attributed without documentation.

11. Market, collecting, and format
The interest of this piece is not to compete with industrially cut blue topaz, but to offer a different presentation: a natural crystal preserved in the rough and converted directly into jewelry.

This format brings mineralogy closer to jewelry because it allows carrying a true crystal fragment without removing much of its original structure through lapidary.

Authentic, well-presented specimens hold additional appeal for buyers seeking mineralogical jewelry, natural crystals, and pieces distant from mass production.

12. The human work behind the mineral
Before becoming a jewel, every mineral requires extraction, selection, classification, and handling. It is worth remembering the effort of workers and miners at origin, whose labor enables materials formed during extremely long geological processes to become part of a collection.

13. Care and conservation
Although topaz reaches 8 on the Mohs scale, it has perfect cleavage and can fracture under strong impacts.

We recommend:
- avoid shocks and drops;
- do not use ultrasonics;
- avoid sudden temperature changes;
- clean only with warm water, neutral soap, and a soft cloth;
- store separately from other jewelry.

Seller profile
Selection carried out with technical and commercial discernment, applying business experience, product analysis, and special attention to authenticity, materials, and presentation. Each piece is studied individually and described aiming to differentiate the verifiable from the merely attributed.

Choosing an authentic piece is not just a purchase; it is a conscious decision that combines beauty, discernment, and real value.