Candle Quartz Identification Guide

What Candle Quartz Looks Like

Candle quartz (also called pineapple quartz or atom quartz) is a growth-form variety of quartz in which the main crystal is coated with many smaller, parallel, drippy overgrowths that resemble melted wax running down a candle. The body is usually milky white, smoky, or clear, sometimes with phantom layering inside. It has the vitreous luster of quartz and is transparent to translucent. The defining feature is the lumpy, candle-wax texture of small crystal terminations stacked along the prism faces, often with a single dominant termination at the top.

Step-by-Step Field-ID Checklist

1. Look for the drippy, wax-like surface of stacked small crystals along the prism.
2. Confirm hexagonal quartz form — six-sided prism with pyramidal terminations.
3. Check color and clarity — milky, smoky, or clear, often with internal phantoms.
4. Test hardness — scratches glass and steel (Mohs 7).
5. Examine luster — vitreous (glassy).
6. Note no cleavage — conchoidal fracture confirms quartz.

Key Diagnostic Tests

• Mohs hardness: 7 — scratches glass; not scratched by a steel knife.
• Streak: white.
• Cleavage/fracture: no cleavage; conchoidal fracture (crystalline SiO2).
• Density: about 2.65 g/cm3.
• No acid reaction; not magnetic.
• Habit: the parallel, drippy candle-wax overgrowths are the diagnostic visual feature.

Common Look-Alikes and How to Tell Them Apart

• Cactus/spirit quartz: covered in fine, even, tiny terminated points (bristly), whereas candle quartz has thicker, drippy, layered parallel growths — texture distinguishes them.
• Elestial quartz: has etched, skeletal, layered terminations with stepped faces, but tends to be more complex and gnarled; candle quartz is a smoother, candle-drip layering.
• Pineapple quartz: often used as a synonym for candle quartz; both describe the layered overgrowth habit.
• Ordinary milky/smoky quartz points: lack the drippy parallel overgrowth coating.
• Drusy quartz on agate: small druse sits on a banded chalcedony base, not stacked along a single large prism.

Where Candle Quartz Is Typically Found

Candle quartz is well known from Madagascar, with similar layered-growth quartz reported from other pegmatite and hydrothermal localities such as Brazil and parts of Africa. It forms where multiple generations of quartz growth build up the characteristic dripped, layered terminations.