Pyromorphite

A variety of Apatite Group

Rare
Pyromorphite specimen - rock identification

What is Pyromorphite?

Pyromorphite, its named derived from the Greek word for "fire", is an uncommon and distinctive mineral. Many pyromorphite specimens bear striking yellow, green, or chartreuse colorations and impressive crystal structures. While there are few commercial uses for this mineral, attractive specimens are sought after by collectors.

Etymology & Origins

The phosphate was first distinguished chemically by M. H. Klaproth in 1784, and it was named pyromorphite by J. F. L. Hausmann in 1813. The name is derived from the Greek for pyr (fire) and morfe (form) due to its crystallization behavior after being melted.

Uses & Applications

Pyromorphite is a source of lead, though it does not occur abundantly and is not the most popular ore of lead. Due to its bright green color, it is a popular collectors item and gemstone that can be very expensive and desirable.

Healing Properties

Pyromorphite is believed to attract wealth and abundance, while unlocking your creativity and allowing for innovative ideas and critical thinking. The energy from this crystal is believed to facilitate happiness and support all aspects of a person's emotional and physical health.

Optical Properties

Refractive Index
2.042-2.059
Birefringence
0.01
Pleochroism
Weak
Optical Character
Uniaxial negative

Pyromorphite Market Value Calculator

Estimate the market value of Pyromorphite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.

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Pyromorphite Localities Map

See where Pyromorphite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

Map preview
North ZoneCentral RidgeSouth Basin

Interactive map layers and collecting notes are available in the app.

Associated Chakras

Solar Plexus
Solar Plexus
Heart
Heart

Key Characteristics

Characteristics of Pyromorphite

The color of the mineral is usually some bright shade of green, yellow or brown, and the luster is resinous. The hardness is 3.5 to 4, and the specific gravity 6.5 - 7.1. Owing to isomorphous replacement of the phosphorus by arsenic there may be a gradual passage from pyromorphite to mimetite. Varieties containing calcium isomorphously replacing lead are lower in density (specific gravity 5.9 - 6.5) and usually lighter in color; they bear the names polysphaerite (because of the globular form), miesite from Mies in Bohemia, nussierite from Nuizière, Chénelette, near Beaujeu, Rhône, France, and cherokine from Cherokee County in Georgia.

Health & Safety Information

  • ⚠️Harm Reason: Pyromorphite dust is toxic because it contains heavy metals Lead.
  • ⚠️Heavy Metal: Lead
  • ⚠️How to prevent the risks of Pyromorphite?

More Images

Pyromorphite specimen 2
© Robert M. Lavinsky
Pyromorphite specimen 3
© Robert M. Lavinsky
Pyromorphite specimen 4
© Robert M. Lavinsky

Quick Facts

Physical Properties

Color
Green to dark green, yellow, greenish-yellow, yellowish-green, orangish-yellow, shades of brown, white, colourless
Hardness (Mohs)
3.5 - 4
Density
7.109 g/cm³
Streak
White
Luster
Greasy, Resinous, Waxy, Sub-vitreous
Crystal System
Hexagonal

Chemical Properties

Chemical Formula
Pb5(PO4)3Cl
Elements
Cl, O, P, Pb

Also Known As

PyromorphiteBryoîdeLead PhosphatePhosphate of LeadPolychrome
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