Orange Zircon is a highly brilliant, dense gemstone favored by collectors for its high refractive index and intense adamantine luster. It is typically found in alluvial gem gravels as well-formed tetragonal prisms, often displaying a warm, vibrant hue that can be enhanced by heat treatment.
Is this orange zircon?
5-step field checkRun through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.
- 1Test the hardnessTry to scratch orange zircon with a known reference. Orange Zircon sits at Mohs 7.5 — softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Orange Zircon leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Orange Zircon typically shows a adamantine luster.
- 4Match the color rangeCompare against the expected color range: orange, reddish-orange, brownish-orange.
- 5Look at form & habitCrystal system: tetragonal. Typical habit: prismatic crystals with pyramidal terminations.
Often confused with
Orange Zircon vs. its common look-alikes — and how to tell them apart in the field.
How to tell apart: Luster reads adamantine on Orange Zircon and vitreous on Spessartine Garnet.
How to tell apart: Luster reads adamantine on Orange Zircon and vitreous on Topaz.
How to tell apart: Luster reads adamantine on Orange Zircon and vitreous on Citrine.
Often found alongside orange zircon
Minerals reported to co-occur with orange zircon. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- ZrSiO₄
- Mohs hardness
- 7.5
- Density
- 4.6-4.7 g/cm³
- Streak
- White
- Luster
- Adamantine
- Transparency
- Transparent
- Crystal system
- Tetragonal
- Crystal habit
- Prismatic Crystals with Pyramidal Terminations
- Cleavage
- Poor
- Fluorescence
- Bright Orange to Yellow Under SW UV
- Rarity
- Uncommon
- Uses
- Gemstone, Collector
- Host rock
- Pegmatites, Granites, And Alluvial Placer Deposits
- Typical price
- $50-500 per carat depending on clarity and color saturation
Where rockhounds find orange zircon
1 mapped spotsClassic worldwide localities
- Sri Lanka
- Tanzania
- Madagascar
- Cambodia
- Myanmar
Field-hunting tip
Look in pegmatites, granites, and alluvial placer deposits country — that is the host setting where orange zircon typically forms. If you start seeing corundum, spinel, ilmenite in float, you are in the right ground. Field specimens usually show a prismatic crystals with pyramidal terminations habit, so train your eye for that shape before scanning the outcrop. In the U.S., the densest reported localities are in South Carolina — start trip planning there.
Common questions
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Find orange zircon on the map
RockHoundR shows mapped rockhounding spots, access rules, and lets you log every find.
