Gazeevite is an extremely rare calcium silicate sulfate mineral discovered in the Hatrurim Formation. It typically occurs as small tabular crystals in pyrometamorphic rocks formed under high-temperature, low-pressure conditions.

Hardness

3.5

Mohs

Luster

Vitreous

Streak

White

Transparency

Transparent

mineralrare

Gazeevite

Hardness: 3.5
Luster: Vitreous
Streak: White
Transparency: Transparent

No image

Is this gazeevite?

5-step field check

Run through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.

1
Test the hardness
Try to scratch gazeevite with a known reference. Gazeevite sits at Mohs 3.5, softer than the next harder reference, harder than the previous one.
2
Check the streak
Drag the specimen across an unglazed porcelain plate. Gazeevite leaves a white streak.
3
Read the luster
Hold the specimen under a strong light. Gazeevite typically shows a vitreous luster.
4
Match the color range
Compare against the expected color range: colorless, white.
5
Look at form & habit
Crystal system: trigonal. Typical habit: tabular crystals.

Often confused with

Gazeevite vs. its common look-alikes, and how to tell them apart in the field.

mineral

Ettringite

Mohs 2

How to tell apart: Gazeevite is noticeably harder (Mohs 3.5 vs. 2).

Often found alongside gazeevite

Minerals reported to co-occur with gazeevite. Spotting these in float or country rock is a strong cue you are in the right ground.

All properties

Chemical formula: Ca₇(Si₆O₁₈)(SO₄)₂·(OH)₂
Mohs hardness: 3.5
Density: 2.71 g/cm³
Colors: Colorless White
Streak: White
Luster: Vitreous
Transparency: Transparent
Crystal system: Trigonal
Crystal habit: Tabular Crystals
Cleavage: None
Rarity: Rare
Uses: Collector
Host rock: Metamorphic Pyrometamorphic Complexes
Typical price: $100-500 for rare micro-specimens

Where rockhounds find gazeevite

Classic worldwide localities

Hatrurim Formation, Israel

Field-hunting tip

Look in metamorphic pyrometamorphic complexes country, the host setting where gazeevite typically forms. If you start seeing gehlenite, rankinite, spurrite in float, you are in the right ground. Field specimens usually show a tabular crystals habit, so train your eye for that shape before scanning the outcrop.

Common questions

How do you identify gazeevite?+

Mohs hardness is 3.5. It typically shows a vitreous luster. The streak is white. Common colors include colorless, white.

Where is gazeevite found?+

Notable localities include Hatrurim Formation, Israel.

How much is gazeevite worth?+

Typical asking prices fall in the range of $100-500 for rare micro-specimens. Quality, size, and provenance can move individual specimens well outside that range.

What rocks look like gazeevite?+

Gazeevite is most often confused with Ettringite, Thaumasite. A quick hardness test and a streak check separate the look-alikes faster than color alone.

What minerals are found with gazeevite?+

Gazeevite commonly co-occurs with gehlenite, rankinite, spurrite, brownmillerite. Spotting any of these in float or country rock is a useful trip signal.

What kind of rock does gazeevite form in?+

Gazeevite typically forms in metamorphic pyrometamorphic complexes. Working float back to the host body is the standard way to chase a fresh occurrence.

What is gazeevite used for?+

Gazeevite is used in collector.

Find gazeevite on the map

RockHoundR shows mapped rockhounding spots, access rules, and lets you log every find.