Thulite

Jewelry Discussion
1

I just bought two matching stones at the SNAG conference (will report
later) for earrings. The stone is thulite. Can someone give me the
mohs scale rating for this stone?

2

Thulite is a pink massive Zosite. Hardness is 6 to 7.

3

Cathy, Thulite is zoisite and has a hardness of 6

4

Simon & Schusters Guide says 6.5

Karen

5

Cathy, Thulite has hardness 6 to 6,5 and it breakes easily.

Regards, A.Heim

6

Thulite is a zoisite (like tanzanite) and has a hardness of 6.5-7
mohs scale. have fun with the ear rings

7

Thulite is a red variety of Zoisite and the mohs is 6 - 6 & 1/2.

Joel Schwalb
@Joel_Schwalb
http://www.schwalbstudio.com

8

cathy - am late in getting to my email so someone has probably already
answered this but schumann lists thulite (zoisite) at 6 - 6 1/2 -

ive

9

Hello Cathy, Thulite is the gemstone name of the mineral zoisite Mohs
scale hardness = 6-7

Regards Keith Torckler, Cornwallis, New Zealand

10

According to June Culp Zeitner, Thulite has a hardness of 6.5… I
would also imagine there are different grades of - “Thulite” -
slabbed material, which would slightly vary in hardness, according to
the materials overall purity…

RnL

11

Hello Cathy,

Thulite is a variety of Zoisite, colored light red or pink by
manganese. Base Chemical Composition: Calcium Aluminum Silicate
Hydroxide Hardness: 6 - 6.5 Specific Gravity: 3.3 Crystal Structure:
Orthorhombic

Charles Heick
Cincinnati, OH

12

Cathy- Hardness of thulite is 6.5. Thulite is a pink or rose variety
of zoisite, first found in Norway near a place called Thule. Also
found in Western Australia and South America. In the US, a rich
rose-colored thulite occurs near Pilar, New Mexico. (from: Zeitner:
GEM & LAPIDARY MATERIALS, 1996 & Schumann:
GEMSTONES OF THE WORLD, 1977.) -Anita Cluett

13

Kathy, The hardness of your pretty pink stone is 6-7. As some may not
know, it’s a variety of the mineral zoisite–the better known variety
being tanzanite, which I always thought should be called “heat-treated
brown zoisite,” which nearly all of it has been. Another beautiful
variety is “ruby in zoisite,” in which the rubies contrast with a
beautiful green zoisite. But then, I’m sure you knew all this.

Gary Strickland, GJG

14

Cathy - thulite is a pink version of zoisite, hardness is: 6 to 7
according to GIA chart A. The crystaline version of zoisite is
tanzanite. Thulite is the national stone of Norway and found around
Lom.

Judy Hoch
@Judy_Hoch

15

thulite is availablefrom Norway ina beautifulred pink and gretype mix
The thulte from Michegan is in a more muted gray base although
also shows the pink and red Leon K

16

Cathy, I don’t know the technical details on thulite, but I have cut
it and it’s pretty soft, but not fragile. It doesn’t break, crack, or
flake from normal handling but it would crumble if you hit it hard
enough. I wouldn’t put it in a ring but a pendant or earrings would
work. It’s a pretty pink and green…like a watered down version of
ruby and zoisite. Have fun with it!

Amy O’Connell
Amy O’Connell Jewelry