Date : 2023-09-05 Publisher :

How to distinguish the quality of crystals

1、 Classification of crystal lamps

1. Crystal lamp, crystal sand, crystal candle lamp, crystal ceiling lamp, crystal wall lamp, crystal floor lamp, crystal desk lamp

2. Fixed: chandeliers, ceiling lamps, wall lamps Mobile: desk lamps, floor lamps

Crystal lamp

2、 Distinguishing the quality of crystals

1. Touching, high-end crystals have sharp edges and corners, while mid to low grade crystals have a smooth feel;

2. Anti counterfeiting signs;

3. Quantity: 224 high-end crystal cutting surfaces, 120 Egyptian and domestic surfaces;

4. Check if the corners are aligned. The corners of the cutting surface of the high-end crystal ball are very aligned, and there is a deviation between Egypt and domestic products that cannot be aligned. Looking at the hole position, it is high-end and exquisite, uniform, smooth, and neat. Other brands have uneven sizes and rough surfaces. Whether the transparency and refractive index are strong;

5. Weigh the weight. The lead content in high-end products exceeds 30%, with a heavy feel in high-end products and a light feel in low-end products.

Crystal lamp

3、 Knowledge of Crystals

1. The main chemical composition of crystal: silicon dioxide

2. The refractive index of a crystal depends on the content of lead oxide (≤ 33% for Swarovski balls, ≤ 32% for Egyptian balls, ≤ 22% -31% for domestic first level balls, ≤ 8% -18% for domestic second level balls). The more lead oxide there is, the richer its luster and color, and the heavier its weight.

3. The higher the purity of the crystal, the absence of bubbles, water ripples, and impurities inside the crystal, and the transparency of the crystal, which can better exert the best optical efficiency, allowing the light passing through to refract magnificent colors and uniform and concentrated gas color spectrum (rainbow).

4. High quality crystal products will use lead containing crystals, with lead oxide not less than 30%. It is a pure raw material that can emit sparkling colors.

5. The world's first crystal glass chandelier was born in France, the "romantic capital"

Currently, imported crystals are mainly produced in Austria and Egypt. (Currently, the industry distinguishes based on the standard of lead content)

The Swarovski brand in Austria is currently the pinnacle of crystal lamp brands, with another Swarovski brand being Strauss. SPECTR crystal accessories are high-quality products from Swallow.

Swarovski has been a globally renowned manufacturer of cut crystals since 1895.

9. Origin of crystal: 1) Domestically produced: mainly concentrated in Zhejiang, while high boron glass tubes are produced in Yancheng and Wuxi, Jiangsu.

10.2) Imports: Egypt, Austria (Swallow)

Crystal: Swarovski crystal, Egyptian crystal, domestic crystal

11. Classification of crystal shapes: pear shaped pieces, dragon boat stick, phoenix tail, maple leaf piece, crystal ball, octagonal bead, golden turtle piece, diamond piece, crystal pendant, square bead, pineapple bead, heart shaped, net shaped, pointed bead, arrow shaped, pointed bar, oxleg, chicken heart, egg shaped piece, frog piece.

12. Most commonly used crystal balls are 40 # and 30 # balls, commonly used crystal wind blades are 3 inches, 2.5 inches, 2 inches, and 1.5 inches, commonly used crystal octagonal beads are 14 #, and commonly used crystal pineapple beads are 10 # and 8 #.

Check if the corners are aligned. The corners of the cutting surface of the high-end crystal ball are very aligned, and there is a deviation between Egypt and domestic products that cannot be aligned. Looking at the hole position,