Serpentine vs Jadeite: The Beginner's Guide to Spotting Fake Jade

Have you ever spotted a piece of 'jade' at a tourist market or online — surprisingly affordable, beautifully green — and wondered if you'd found a bargain? More often than not, those budget-friendly pieces are serpentine (蛇紋石), a mineral that resembles jadeite in appearance but is fundamentally different in composition, hardness, and value. For any first-time jade buyer, learning to distinguish serpentine from genuine jadeite is the single most important lesson.

What Is Serpentine?

Serpentine is a group of magnesium silicate minerals, typically green, yellow-green, or white in colour. Its name derives from the Latin serpens (snake), because its surface markings sometimes resemble snakeskin. Serpentine is a legitimate gemstone material in its own right — the problem arises when it is sold as jadeite, deceiving buyers who are paying for something they are not receiving.

⚠️ Important: Serpentine itself is not inherently dishonest — it is a mineral with its own character and appeal. The problem is when sellers market serpentine as jadeite, which is consumer fraud.

Serpentine vs Jadeite: Core Differences

Three Simple Tests to Identify Serpentine

You don't need professional equipment. These three tests provide a reliable first-pass assessment of whether a stone is genuine jadeite or serpentine.

Test 1: Hardness Test

Jadeite has a Mohs hardness of 6.5–7; glass has a hardness of 5.5. Genuine jadeite can scratch glass, but glass cannot scratch jadeite. Serpentine has a hardness range of 3–6; the most common gem-quality variety (antigorite) is typically 3.5–4, meaning glass can easily scratch it. Method: Use the edge of the stone to lightly scratch the bottom of a glass (or any glass surface). If the glass shows a scratch mark, that is a positive sign. If the stone itself shows a scratch mark instead, exercise caution.

💡 Note: The hardness test is not 100% conclusive, as some imitations use glass (hardness 5.5) or other harder materials. Use this as an initial filter, not a final verdict.

Test 2: Temperature Test

Jadeite is a natural mineral with high thermal conductivity — it feels noticeably cold to the touch and takes time to warm up in your hand. Serpentine has lower thermal conductivity and feels closer to room temperature from the start. Method: Place the stone against your cheek or the back of your hand. Genuine jadeite should feel distinctly cool; serpentine will feel warmer.

Test 3: Lustre and Translucency

Genuine jadeite has a vitreous (glass-like) lustre — lively, three-dimensional, with depth. When held up to a light source, light penetrates into the stone, creating a glow from within. Serpentine has a waxy lustre — flat and one-dimensional, with light reflecting only off the surface rather than entering the stone.

Common Serpentine Imitations on the Market

• Xinshan Jade (新山玉): A variety of serpentine with a vivid green colour; one of the most common jadeite imitations
• Xiuyan Jade (岫玉): Serpentine from Xiuyan, Liaoning; ranges from pale to deep green; historically called 'jade' in China
• Southern Jade (南方玉): A broad term for serpentine from Guangdong and Guangxi; frequently mixed into jadeite markets by unscrupulous sellers
• Tourist-market 'jade': Low-priced 'jadeite' sold at tourist destinations in Yunnan, Guilin, etc. — the vast majority is serpentine or other imitations

Flora's Three Buying Tips

• Ask how the individual piece can be checked: a certificate is not promised for every piece. Before purchase, ask on WhatsApp about the optional HK$250 appraisal arrangement and rely on a qualified gem laboratory report for formal conclusions
• Don't chase bargains: Genuine natural A-grade jadeite has a fair market price. If a piece of 'jadeite' is priced suspiciously low, it is almost certainly not the real thing
• Buy from trusted sellers: Choose sellers with a physical presence, a good reputation, and willingness to explain the recorded details of each piece. Missing Faye Co. describes each work using its recorded information and directs formal conclusions to a qualified gem laboratory report

💡 From Flora: One of the reasons I started this brand was seeing too many beginners get burned by fake jade — and feeling helpless about it. The genuine jade market does exist; you just need to know how to navigate it. If you have any doubts about a piece you own or are considering buying, WhatsApp us — we're happy to help assess it, even if you didn't buy it from us.

What If I've Already Bought Serpentine?

First, don't be hard on yourself. Serpentine passing as jadeite is a widespread problem — even experienced buyers have been caught out. The important thing is to learn from the experience and approach future purchases with greater confidence. If the purchase was recent, you can try requesting a refund or exchange from the seller and ask for a gem certificate. If the seller refuses, you can file a complaint with the Hong Kong Consumer Council.