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Author Topic: Hartz range.....something?  (Read 24462 times)

Butts

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Re: Hartz range.....something?
« Reply #15 on: February 10, 2013, 02:25:46 AM »
This is an 7.5 ct purple zircon from HR which I picked up that people had missed due to not using enough clean water when washing their stone.

Not sure if the true colour will come through but it is a very nice purple

I cut this quite some time ago when I had a Gemmasta

Cheers Butts



fossickeract

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Re: Hartz range.....something?
« Reply #16 on: February 10, 2013, 08:54:41 AM »
 That's about as good as it gets, beautiful stone like the cut and colour.
                                                                            beers Ted
Life isn't a rehearsal.

Butts

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Re: Hartz range.....something?
« Reply #17 on: February 10, 2013, 11:37:09 AM »
Thanks Ted

Jamo

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Re: Hartz range.....something?
« Reply #18 on: February 10, 2013, 04:21:10 PM »
Nice colour on that stone Butts. I would call it "champagne mulberry". :)
Baaa humbug, not enough fossicking time!

Butts

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Re: Hartz range.....something?
« Reply #19 on: February 10, 2013, 06:50:21 PM »
I'd drink to that Jamo  beers

chookie2

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Re: Hartz range.....something?
« Reply #20 on: February 12, 2013, 05:33:49 PM »
Mulberry Champagne Hmmm .........the mulberries are ripe right now - if the birds haven't eaten them all. Might be ready for Gemboree in 2015! ;D
Happy Fossicking from Chookie

Geology Rocks, I really dig it.
My rocks are gneiss, don’t take them for granite.

Jamo

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Re: Hartz range.....something?
« Reply #21 on: February 14, 2013, 07:35:41 AM »
Mulberry trees!!!! I find ours extremely frustrating Chookie. Ours starts with lots of fruit every year and then they all just shrivel up & die. Seriously thinking of giving the tree the axe! :(
Baaa humbug, not enough fossicking time!

chookie2

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Re: Hartz range.....something?
« Reply #22 on: February 14, 2013, 09:36:12 AM »
Sounds like a water problem or maybe a rare mulberry that needs a pollinator- mostly they don't. The one here is simply laden with fruit and the birds are enjoying it as I can't reach the higher areas.
Happy Fossicking from Chookie

Geology Rocks, I really dig it.
My rocks are gneiss, don’t take them for granite.

Jimnyjerry

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Re: Hartz range.....something?
« Reply #23 on: February 14, 2013, 10:23:02 AM »
Mulberry trees!!!! I find ours extremely frustrating Chookie. Ours starts with lots of fruit every year and then they all just shrivel up & die. Seriously thinking of giving the tree the axe! :(
Try cow manure. Also lean an axe against the tree.  It should get the message. :)
I try to take one day at a time, but sometimes several days attack me at once.

chookie2

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Re: Hartz range.....something?
« Reply #24 on: February 14, 2013, 11:49:56 AM »
maybe a naked rain dance with war paint holding a machete would do it. ;D
Happy Fossicking from Chookie

Geology Rocks, I really dig it.
My rocks are gneiss, don’t take them for granite.

Jimnyjerry

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Re: Hartz range.....something?
« Reply #25 on: February 14, 2013, 11:54:13 AM »
or scare it with a zombie  :D
I try to take one day at a time, but sometimes several days attack me at once.

Jamo

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Re: Hartz range.....something?
« Reply #26 on: February 15, 2013, 08:05:25 PM »
Think I'll try the cow manure for now! The other options you gave weren't so appealing to the wife & kids  :o
Baaa humbug, not enough fossicking time!

Lefty

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Re: Hartz range.....something?
« Reply #27 on: June 03, 2015, 06:13:37 AM »
Re-discovered the bag of this stuff while ferreting around for something else and now that I facet I've decided to give it a go. The gemmologist we had at the club (now moved away) was fairly certain it was just clear quartz but still had a couple of tests to do to be 100% sure. Found a clean-looking piece the right size and started to pre-form it.


I probably have it wrong but the more closely I look at this stuff the more I struggle to believe it is quartz, just like last time. There are bright, flat faces on some pieces and it appears to have cleavage planes which quartz does not have, with some surfaces having a bit of a "stepping-down" look.


I ground it roughly to shape and then decided to polish a couple of the faces up to #3000 on the resin-bonded wheel on the cabbing machine for a better veiw inside. Looking through the loupes, there are some tiny inclusions in it. They are not visible in all directions and seem to disappear when the stone is turned. They look like tiny cracks but they are nothing like cracks I have seen in quartz. They are not joined up and look like tiny needles and all seem to be running the same direction. They look like the tiny cracks in a bit of faceted morganite I saw the other week.


I tried to scratch the polished surface with the sharp point of a quartz crystal and could not leave any trace of a mark. It does not seem overly-heavy but seems at least as hard as quartz. It doesn't seem quite colourless now either, I think I see an extremely pale pinkish tinge.


Be interesting to see how it turns out but even more interesting to know what the stuff is for certain.

Lefty

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Re: Hartz range.....something?
« Reply #28 on: June 03, 2015, 12:23:29 PM »
Petalite? Looks very similar to Hartz range petalite I have seen for sale. Without doing a SG test it seems to have a very similar weight to quartz (petlite is just slightly ligher than quartz). Some bits of this stuff show conchoidal fractures as both quartz and petalite should but petalite has perfect cleavage while quartz does not - some of this stuff definately seems to show cleavage.

Only this is that petalite is 6.5 on Moh's and yet quartz at 7 could not scratch it.

I'm gonna try faceting it anyhow.

Lefty

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Re: Hartz range.....something?
« Reply #29 on: June 23, 2015, 06:00:16 AM »
Hartz range something faceted.














The second photo shows what appears to be a surface covered in scratches - they are not scratches and the surface polished up well, the stone is full of tiny, needle-like formations all the way through it. While it may sound like a bit of a contradiction, it has a slightly "sleepy" look to it and yet is a nice, bright stone overall. The material does not seem particularly heavy but is quite hard and tough.


Really have to get my bum into gear and send off to a gemmologist.

 

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