Baileychlore is a rare, zinc-rich member of the chlorite group that typically forms as platy or micaceous aggregates. It is primarily identified by its deep green color and occurrence in zinc-rich ore deposits, often appearing as coatings or intergrowths with other metallic minerals.

Hardness
<5
Mohs
Luster
Pearly
Streak
Light green
Transparency
Transparent

Is this baileychlore?

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 baileychlore with a known reference. Baileychlore sits at Mohs <5, softer than the next harder reference, harder than the previous one.
  • 2
    Check the streak
    Drag the specimen across an unglazed porcelain plate. Streak: light green.
  • 3
    Read the luster
    Hold the specimen under a strong light. Luster: pearly.
  • 4
    Match the color range
    Compare against the expected color range: dark green, yellow green.
  • 5
    Look at form & habit
    Crystal system: triclinic. Typical habit: platy crystals, foliated masses, micaceous aggregates.

Often confused with

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

Often found alongside baileychlore

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

All properties

Chemical formula
(Zn,Fe²⁺,Al,Mg)₆(Si,Al)₄O₁₀(OH,O)₈
Mohs hardness
<5
Density
3.18 g/cm³
Streak
Light green
Luster
Pearly
Transparency
Transparent
Crystal system
Triclinic
Crystal habit
Platy crystals, foliated masses, micaceous aggregates
Cleavage
Perfect micaceous
Rarity
Rare
Uses
Collector
Host rock
As rims on colloform calcite veins, within a strongly oxidized collapse karst-breccia containing skarn clasts

Where rockhounds find baileychlore

Classic worldwide localities

  • Red Dome deposit, 15 km west-northwest of Chillagoe, Queensland, Australia

Field-hunting tip

Where it forms: As rims on colloform calcite veins, within a strongly oxidized collapse karst-breccia containing skarn clasts. If you start seeing andesine, garnet, vesuvianite in float, you are in the right ground. Typical habit: platy crystals, foliated masses, micaceous aggregates. Train your eye for that shape before scanning the outcrop.

Common questions

How do you identify baileychlore?+
Mohs hardness is <5. Luster: pearly. The streak is light green. Common colors include dark green, yellow green.
Where is baileychlore found?+
Notable localities include Red Dome deposit, 15 km west-northwest of Chillagoe, Queensland, Australia.
What rocks look like baileychlore?+
Baileychlore is most often confused with Clinochlore, Chamosite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with baileychlore?+
Baileychlore commonly co-occurs with Andesine, Garnet, Vesuvianite, Zincian chamosite, Goethite, Hematite. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does baileychlore form in?+
Where it forms: As rims on colloform calcite veins, within a strongly oxidized collapse karst-breccia containing skarn clasts. Working float back to the host body is the standard way to chase a fresh occurrence.
What is baileychlore used for?+
Baileychlore is used in collector.

Find baileychlore on the map

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