ZenWrist / Guide
Three red materials, three different minerals. Cinnabar is mercury sulfide, hand-carved and soft; red agate and Southern Red agate are quartz-family stones, hard and durable. This guide compares them fact by fact.
Last updated: November 2026
Cinnabar (朱砂), red agate (红玛瑙), and Southern Red agate (南红) are often confused because all three come in red — but they are different minerals with different hardness, weight, craft traditions, and price ranges. Cinnabar is defined by chemistry (HgS); the two agates are defined by variety and origin within the quartz family.
| Cinnabar (朱砂) | Red agate (红玛瑙) | Southern Red agate (南红) | |
|---|---|---|---|
| Mineral | Mercury sulfide (HgS) | Chalcedony (SiO₂) | Chalcedony (SiO₂), southern China origin |
| Hardness (Mohs) | 2–2.5 (soft, carvable) | 6.5–7 (hard) | 6.5–7 (hard) |
| Typical color | Deep red to purple-red; imperial red, purple-gold, red sand varieties | Banded or solid reds, often brighter | Rich, saturated red with waxy luster |
| Feel in hand | Noticeably heavy, waxy surface | Cool, glassy | Cool, waxy to glassy |
| Craft | Hand-carved beads, plaques, Pixiu | Cut, polished, often dyed to enhance color | Cut and polished; fine color commands premium |
| Price position | Mid to high (carving labor + material) | Entry to mid | Mid to collector-grade |
| Cultural note | Centuries of Chinese carving and Taoist use | Widely used ornamental stone | Historically prized in Chinese connoisseurship |
Cinnabar's softness (Mohs 2–2.5) is a feature, not a flaw: it allows the deep hand-carving — Pixiu beasts, fortune plaques, lotus motifs — that defines ZenWrist's collection. Our cinnabar comes in three color families: purple-gold (deep purple-red), imperial (bright red), and red sand (true red). Every cinnabar product page on this site carries a mercury-safety FAQ: cinnabar is mercury sulfide, worn on the skin, stable at everyday temperatures, with simple precautions.
Red agate is chalcedony, a microcrystalline quartz. At Mohs 6.5–7 it resists scratches far better than cinnabar, which makes it a practical everyday stone. Much commercial "red agate" is color-enhanced; natural untreated red agate exists but ask the seller plainly. It is generally the most affordable of the three.
南红 (nánhóng) refers to red chalcedony from deposits in southern China (notably Yunnan and Sichuan). It is chemically the same family as red agate, but the finest pieces — pure, saturated red with a waxy, almost glowing luster — have been collected in China for centuries and priced accordingly. Color purity is everything: uniform, vivid red without gray or black patches commands the premium.
Match the material to your priority. Hand-carved detail and traditional symbolism → cinnabar. Hardness and everyday wear at a lower price → red agate. Gemstone-grade red color as a collectible → Southern Red agate. We make no protective or health claims for any of them — only materials, craftsmanship, and care facts.
They are completely different minerals. Cinnabar is mercury sulfide (HgS), soft (Mohs 2–2.5), deep red. Red agate is chalcedony quartz (SiO₂), hard (Mohs 6.5–7). Different composition, hardness, feel, and price.
A prized red chalcedony from southern China. Same quartz family as red agate (Mohs 6.5–7), valued for rich red color and waxy luster. Fine pieces are collected as gemstones.
Red agate and Southern Red agate (Mohs 6.5–7) are far harder than cinnabar (Mohs 2–2.5). Cinnabar's softness is why it is hand-carved rather than faceted.
Check weight, texture, and color depth. Cinnabar feels heavier; hand-carved surfaces show tool marks vs. glassy uniformity; natural red has subtle variation vs. flat dyed red.
Match material to priority: cinnabar for carving and tradition, red agate for durability and price, Southern Red agate for gemstone color. No health claims for any of them.
Related: cinnabar bracelets · is cinnabar safe? · 朱砂真假鉴别