Editorial Feature

Simferite - Occurrence, Properties, and Distribution

Simferite is an orthorhombic dark red mineral containing iron, lithium, magnesium, manganese, oxygen, and phosphorus. Simferite was named after the city of Simferopol, Crimea, Ukraine, where the mineral was studied.

Properties of Simferite

The following are the key properties of Simferite:

  • Cell Data
    • Space group: Pbnm or Pbn21
    • a = 4.7468(7)
    • b = 10.101(2)
    • c = 5.8992(7)
    • Z = 4
  • Crystal Data
    • Orthorhombic
    • Point group: 2/m 2/m 2/m or mm2.
    • Rare crystals, to 0.1 mm, are tabular, with {001}, {010}, {110}, {120}, in aggregates
    • Twinning: Commonly observable
    • X-ray powder pattern: 2.48 (10), 4.30 (9), 2.93(8), 3.85 (6), 3.45 (6), 2.42(6), 2.23 (6)
  • Chemical Composition
    Elements Content 1 Content 2
    P2O5 51.90 51.00
    Fe2O3 16.87 17.39
    MgO 15.78 12.36
    Mn2O3 9.84 14.83
    Li2O 5.45 5.35
    CaO 0.00 0.08
    Total 99.84 101.01
  • Optical Properties
    • Optical class: Biaxial (+)
    • Pleochroism: X = light brown to red; Y = brownish yellow to brown; Z = yellow to reddish yellow
    • Orientation: X = c; Y = a; Z = b
    • Dispersion: r > v, strong
    • α = 1.690–1.704
    • β = 1.702–1.716
    • γ = 1.712–1.726
    • 2V(meas.) = 54°–60°
  • Estimated Properties
    Electron density Bulk density (electron density)= 3.16 g/cm3
    note: Specific gravity of simferite = 3.25 g/cm3
    Photoelectric PESimferite = 6.94 barns/electron
    U=PESimferite x ρelectron density= 21.90 barns/cm3
    Fermion index Fermion index = 0.01
    Boson index = 0.99
    GRapi = 0 (Gamma Ray American Petroleum Institute Units)
    Simferite is not radioactive

How to Identify Simferite

Simferite can be identified in the field by its dark red color. The appearance of this mineral is transparent. It is a mineral with a vitreous-resinous luster and a brown streak. The conchoidal fractures in the mineral are uneven. The density of simferite is 3.24 g/cm3 and hardness is 5 approximate to apatite.

Global Distribution

Simferite is widely distributed in the following locations:

  • Ukraine - In the Radionovskoye pegmatite field, middle Berda River, Zaporozhe district.
  • Poland - Lower Silesia (Dolnoslaskie), Sudetes Mts, Sowie Mts.Michalkowa (Michelsdorf).

Occurrence of Simferite and Useful Mineral Association

Simferite is often associated with minerals such as muscovite, albite, phlogopite, quartz, oligoclase, apatite, and tourmaline.

Simferite occurs at the contact of a rare-earth-bearing granite pegmatite and phlogopitized ultramafic tremolite rock.


Tell Us What You Think

Do you have a review, update or anything you would like to add to this article?

Leave your feedback
Your comment type

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.