Barytocalcite is a rare carbonate mineral typically found in hydrothermal vein deposits. Collectors should look for its characteristic bright yellow fluorescence under short-wave UV light, which helps distinguish it from more common carbonate minerals like calcite.

Hardness

Mohs

Luster

Vitreous

Streak

White

Transparency

Translucent

mineralrare

Barytocalcite

Hardness: 4
Luster: Vitreous
Streak: White
Transparency: Translucent

Is this barytocalcite?

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 barytocalcite with a known reference. Barytocalcite sits at Mohs 4, softer than the next harder reference, harder than the previous one.
2
Check the streak
Drag the specimen across an unglazed porcelain plate. Barytocalcite leaves a white streak.
3
Read the luster
Hold the specimen under a strong light. Barytocalcite typically shows a vitreous luster.
4
Match the color range
Compare against the expected color range: white, yellow, gray, colorless.
5
Look at form & habit
Crystal system: monoclinic. Typical habit: tabular crystals, prismatic, massive.

Often confused with

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

How to tell apart: Barytocalcite is noticeably harder (Mohs 4 vs. 3).

Compare →

Often found alongside barytocalcite

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

All properties

Chemical formula: BaCa(CO₃)₂
Mohs hardness: 4
Density: 3.66 g/cm³
Colors: White Yellow Gray Colorless
Streak: White
Luster: Vitreous
Transparency: Translucent
Crystal system: Monoclinic
Crystal habit: Tabular Crystals, Prismatic, Massive
Cleavage: Perfect On {001} and {110}
Fluorescence: Bright Yellow Under SW UV
Rarity: Rare
Uses: Collector
Host rock: Hydrothermal Veins in Limestone
Typical price: $20-150 for small specimens, $200+ for rare crystals

Where rockhounds find barytocalcite

Classic worldwide localities

Alston, Cumbria, England
Harz Mountains, Germany
Rajasthan, India
Langban, Sweden

Field-hunting tip

Look in hydrothermal veins in limestone country, the host setting where barytocalcite typically forms. If you start seeing barite, fluorite, galena in float, you are in the right ground. Field specimens usually show a tabular crystals, prismatic, massive habit, so train your eye for that shape before scanning the outcrop.

Common questions

How do you identify barytocalcite?+

Mohs hardness is 4. It typically shows a vitreous luster. The streak is white. Common colors include white, yellow, gray, colorless.

Where is barytocalcite found?+

Notable localities include Alston, Cumbria, England; Harz Mountains, Germany; Rajasthan, India; Langban, Sweden.

How much is barytocalcite worth?+

Typical asking prices fall in the range of $20-150 for small specimens, $200+ for rare crystals. Quality, size, and provenance can move individual specimens well outside that range.

What rocks look like barytocalcite?+

Barytocalcite is most often confused with Alstonite, Witherite, Calcite. A quick hardness test and a streak check separate the look-alikes faster than color alone.

What minerals are found with barytocalcite?+

Barytocalcite commonly co-occurs with Barite, Fluorite, Galena, Sphalerite, Calcite. Spotting any of these in float or country rock is a useful trip signal.

What kind of rock does barytocalcite form in?+

Barytocalcite typically forms in hydrothermal veins in limestone. Working float back to the host body is the standard way to chase a fresh occurrence.

What is barytocalcite used for?+

Barytocalcite is used in collector.

Find barytocalcite on the map

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