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#1

Dappa
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From: Beechworth, VIC
Joined: 27 March 2018
Posts: 36
Member
08 July 2018 11:01 pm

Sorry bit of a noob but can anyone tell me what the best way to clean quartz is ??


Adapt Improvise Overcome

#2

Heatho
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From: Sydney, NSW
Joined: 29 April 2013
Posts: 13,257
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09 July 2018 08:51 am

Oxalic acid, you can get it from Bunnings.

https://www.bunnings.com.au/diggers-2kg … r_p0960276


Minelab GPX 5000, SDC2300, CTX3030, Equinox 800, patience, lot's of patience.

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#3

Lefty
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Joined: 01 May 2014
Posts: 1,958
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09 July 2018 09:01 am

Gday Dappa. Yep, I've gotten ok results using the stuff Heatho mentions. Just be sure to wear safety glasses, gloves etc. I saw a nice quartz cluster a while back that bloke said had been cleaned in hydrochloric acid but you'd want to be extremely careful. Just like any cleaning chemical.

If the crystal faces are scaly, oxalic acid may not make them shiny. I've not actually succeeded in getting quartz to etch with anything yet - it's chemically different to glass and a lot harder then most normal glass types - but it might pay not to leave them in solution too long all the same.

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#4

Dappa
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From: Beechworth, VIC
Joined: 27 March 2018
Posts: 36
Member
09 July 2018 03:20 pm

Thks guys will give it a try let you guys know i'll get some before and afters as well smile


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#5

Dappa
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From: Beechworth, VIC
Joined: 27 March 2018
Posts: 36
Member
10 July 2018 06:39 pm

Heatho wrote:

Oxalic acid, you can get it from Bunnings.

https://www.bunnings.com.au/diggers-2kg … r_p0960276

heatho i ve found this stuff but its a powder how strong do u mix it ?


Adapt Improvise Overcome

#6

Mackka
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From: Brisbane
Joined: 18 February 2014
Posts: 4,489
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10 July 2018 07:17 pm

What does it say on the container instructions?
Mackka

#7

Dron
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From: Wollongong, NSW
Joined: 06 March 2016
Posts: 239
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10 July 2018 08:26 pm

There's a recipe on this site, you might have to convert to metric units ... https://www.mindat.org/article.php/403/Cleaning+Quartz

The reaction rate is increased by using hot water. Be careful with acid and dispose of it thoughtfully.


SDC2300 aka "The Birdshot Bandit" + SP01 + Gog Phones. Equinox 800 aka "Johnny kNOXville" + Tyger Snake digger. Wollongong based.

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#8

Mackka
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From: Brisbane
Joined: 18 February 2014
Posts: 4,489
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11 July 2018 07:27 am

Acid to water and never the opposite.
Mackka

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#9

RockRat
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Joined: 26 May 2018
Posts: 285
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11 July 2018 09:06 pm

thumbsup

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#10

Dihusky
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From: Gold Coast, QLD
Joined: 16 June 2017
Posts: 825
Member
12 July 2018 08:59 am

Dappa wrote:
Heatho wrote:

Oxalic acid, you can get it from Bunnings.

https://www.bunnings.com.au/diggers-2kg … r_p0960276

heatho i ve found this stuff but its a powder how strong do u mix it ?

Doubt that this will have much of an effect, it is a mild alkali not acid, works more like a soap.

Not sure what type of acid you want, but for a mild one you could start with Rust Converter, this is based on Phosphoric Acid and you can get it in small bottles. It is already diluted so reasonably safe to handle. To go stronger the most readily available acid is pool acid, but this you MUST dilute.

#11

Heatho
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From: Sydney, NSW
Joined: 29 April 2013
Posts: 13,257
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12 July 2018 09:25 am

With a ph of 1 oxalic acid is certainly 100% not an alkali, it would not be called an acid if that was the case......

Oxalic acid IS well known and IS the prefered method for removing iron stains off quartz crystals!

https://www.mamasminerals.com/How-To-Cl … p_149.html


Minelab GPX 5000, SDC2300, CTX3030, Equinox 800, patience, lot's of patience.

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#12

LoneWolf
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From: Gold Coast, QLD
Joined: 12 April 2016
Posts: 3,415
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14 July 2018 10:27 am

Don't leave them in the Acid solution for too long or you may end up with Green Crystals...

LW.....


Growing Old is Inevitable.... Growing Up is Optional.... Prospectors United Will Never Be Defeated

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#13

Dappa
Member
From: Beechworth, VIC
Joined: 27 March 2018
Posts: 36
Member
27 November 2019 12:52 am

I ended up using brick acid worked ok i think polishing is the way to go playful


Adapt Improvise Overcome

#14

Bushbear
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Joined: 30 January 2017
Posts: 17
Member
01 December 2019 09:06 am

Hi Dappa sorry about the late response.
I have used many acids to try and clean quartz but have found the best results from multiple baths in Oxalic acid with picking in cervices with tooth picks and pins.

1575151585_20170502_103750.jpg
1575151585_20170505_135029.jpg
1575151585_nundle_diamonds.jpg


Above ground or below life doesn’t get any better than when prospecting.

#15

Pat Hogen
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Joined: 02 January 2018
Posts: 206
Member
01 December 2019 06:46 pm

Yep, I use Diggers Rust Remover from Bunnings. Works a treat with tooth brush, children's toy-baby bottle cleaner, sharpened bamboo chopsticks, toothpicks and bagging needles.


Absinthe makes the heart grow fonder

#16

Gilly47
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From: Currently on Tour, QLD
Joined: 18 January 2015
Posts: 706
Member
03 December 2019 12:39 am

any one tried phosphoric acid ???

ray


1 wife 1 dog and a sieve. NAPFA & QSMA member,

#17

LoneWolf
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From: Gold Coast, QLD
Joined: 12 April 2016
Posts: 3,415
Member
04 December 2019 12:43 am

No I haven't Gilly, have you?

LW...


Growing Old is Inevitable.... Growing Up is Optional.... Prospectors United Will Never Be Defeated

#18

Gilly47
Member
From: Currently on Tour, QLD
Joined: 18 January 2015
Posts: 706
Member
04 December 2019 03:12 am

gave some quartz a splash last week fizzed a bit. gunna set up for a bit of bucket chemistry as the clay in the gemfields is like glue
poop poop


1 wife 1 dog and a sieve. NAPFA & QSMA member,

#19

LoneWolf
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From: Gold Coast, QLD
Joined: 12 April 2016
Posts: 3,415
Member
04 December 2019 08:38 am

How are things going with your lease up there Gilly?

LW...


Growing Old is Inevitable.... Growing Up is Optional.... Prospectors United Will Never Be Defeated

#20

Bushbear
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Joined: 30 January 2017
Posts: 17
Member
04 December 2019 10:23 pm

Sorry looks like other two photo's did not load.
1575458573_nundle_diamonds-s.jpg
1575458586_20170505_135029-s.jpg


Above ground or below life doesn’t get any better than when prospecting.

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