Eric huang

The popular science written materials in this article are all sourced from professional textbooks such as “National Standard GB/T 16652 – 2017 Jewelry and Precious Stones – Nomenclature”, “Systematic Gemmology”, and “Gemmology Tutorial”. Why are natural gemstones optimized and treated? Is a gemstone still valuable for collection after optimization and treatment? Let’s see how “Systematic […]

Is crystal raw stone still unearthed locally in Donghai? The total reserves of crystal in Donghai County are about 300,000 tons, and the reserves of quartz are about 300 million tons. The reserves and quality rank first in the country. This is what the government promotes, but no one knows exactly how much is left!

There are many methods of identifying crystals online, such as visual inspection, licking with the tongue, testing hardness, observing double images of hair using the refractive property of crystals, etc. However, in practical situations, these methods are often not operational. For the specific unreliable operations, you can ask Baidu. I won’t go into details here.

The so-called saying goes that there are thousands of types of agate and countless kinds of jade, and the same principle applies to crystals. Currently, on the market, crystals are mainly divided into pure-color crystals and inclusion crystals. Pure-color crystals are further classified into: white crystal, citrine, amethyst, rose quartz (pink crystal), smoky quartz, green

I have observed many netizens’ comments on the evaluation of completely clear white crystal: ‘Isn’t this just glass?’ Indeed, visually, completely clear white crystal bears a strong resemblance to glass. So, what is the difference between crystal and glass? Additionally, there are numerous online tutorials on how to distinguish between crystal and glass, such as

Recently, ‘Swan Jade’ has caused quite a stir in the jewelry circle, facing criticism from many insiders. It’s a common practice to misrepresent items in the jewelry industry, so no one should cast the first stone. So, what should you do when encountering such situations? Of course, rely on the appraisal results from certificates. However,

Mineral Name: Beryl. Color: Light blue, greenish-blue to blue-green, usually with a relatively light color. Luster: Vitreous luster. Fluorescence Observation: Aquamarine is colored by iron and has no fluorescence! No fluorescence! No fluorescence! Hardness: 7.5 – 8. Aquamarine belongs to the beryl family. Emerald is its cousin, and the delicate Morganite is its cousin. It