Gemstone Hardness

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Revised trading hours
 Monday-Saturday  9.30am-4pm

Shop 3, 284-290 Rocky Point Road
Ramsgate 2217 NSW
ENTRY VIA DILLON STREET
02 9529 9982

Directions

Pick Up Orders available 

To all our valued customers firstly we would like to say Thank You for your continued support and loyalty at these vulnerable times.

Bead Them Up will Re-Open for in shop customer service from Monday 1 November 2021.

We take our obligations regarding the Health and Safety of our customers, staff and families very seriously.

Under current legislation we have a legal obligation to provide a safe environment and work place for our staff and customers. Accordingly at this stage when we reopen we will be restricting access to staff and customers who can show they are double vaccinated. Proof will be required prior to entering our premises. 

Classes will resume next year 2022.

We thank you for your patience and understanding as we move forward.

Internet orders will be processed and posted at approximately 2.30pm DAILY
contact us on
Phone 0295299982 10am-3pm
email info@beadthemup.com.au



Gemstone Hardness

All gemstones have different hardness measured by Mohs’ scale.

The scale was developed by German gem expert, Friedrich Mohs in 1812. The scale measures gemstones from 1 to 10.

1 is the most easily scratched while 10 is the most scratch resistant.

Knowing a gemstone's hardness can help when making jewellery designs.

Prevent scratching of gemstones in a design by using gemstones of similar hardness next to each other.

Scale of Hardness

Resilience

Stones

0-1

Can scratch with your fingernail

Talc

1-1½

Can scratch with your fingernail

Gypsum
Sulphur

2-3

 

Amber

2-4

 

Ivory

3-4

Can scratch with a coin

Pearl
Coral

3½-4

 

Malachite

4

Can scratch with a knife

Rhodochrosite

Can scratch with a copper coin.

Calcite
Kyanite
(lengthwise to grain)

5-6

This gemstone scratches softer glass.

Fluorite
Lapis Lazuli
Turquoise

5½-6½

 

Opal

6-6½

Can scratch with a steel file

Kyanite (across wise to grain)
Moonstone

6½-7

Can scratch with dust. Most dust is silicate (which is a
7) clean all your gemstones below 7 with a dust free cloth.

Quartz
Tanzanite
Apatite
Peridot

7

Can scratch with glass and will scratch all other gemstones of lower scale

Citrine
Amethyst

7-7½

 

Tourmaline
Garnet

7½-8

 

Emerald

8

This gemstone will scratch lower value gemstones and quartz.

Topaz

 

Alexandrite

9

This gemstone will scratch previous stones

Ruby
Sapphire

10

This gemstone will scratch previous stones. Saws and drill-bits are often diamond-tipped. It will cut through most things.

Diamond


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