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Fluorite Tumblestone

£ 1.50
Order by 2 p.m. tomorrow for delivery by 18 October 2024
Free 30-Day Returns
Product Description
Fluorite, also known as fluorspar, is the mineral form of calcium fluoride, which has the chemical formula CaF2. It belongs to the halide group of minerals. Flourite crystallizes in an isometric cubic habit, although octahedral and more complex isometric forms are also found. On the Mohr scale of mineral hardness, flourite has a value of 4.0 Pure fluorite is colourless and transparent, both in visible and ultraviolet light, but impurities usually make it a colorful mineral and the stone is popular for ornamental and lapidary decoration. In industry, fluorite is used as a flux for smelting, and in the production of certain glasses and enamels. The purest grades of fluorite are a source of fluoride for synthesising hydrofluoric acid. Optically clear transparent fluorite lenses have low dispersion, so lenses made from it exhibit less chromatic aberration, making them valuable in microscopes and telescopes. Fluorite optics are also usable in the far-ultraviolet and mid-infrared ranges, where conventional glasses are too opaque for use. Sold in single pieces, sizes may vary
Shipping & Returns

Shipping Options (UK Mainland)

Orders placed before 2:00 p.m. GMT will be processed the same day (Monday-Saturday). Delivery options are selected at checkout.

Standard Delivery

  • 2-3 business days.
  • £2.95.
  • FREE delivery over £40.

First Class Delivery

  • 1-2 business days.
  • £3.95.

Express Courier Delivery

  • 24 hours.
  • £7.99.

For shipping to locations outside of the UK mainland, see our full shipping policy.

Returns

Unopened goods may be returned for a full refund within 30 days of receipt of your order. For further details, see our full returns policy.

Contact Us

Email

orders@curiousminds.co.uk

Phone
+44(0)1436 670806

Our Address

Curious Minds Science Ltd (Grasshopper Toys)
112 West Princes Street
Helensburgh
Argyll & Bute
G84 8XD

United Kingdom

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