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06 Dec-23:40:57 The mizunaka collection - quartz (Am Mizunaka)
06 Dec-23:31:40 Re: don lum collection (Don Lum)
06 Dec-16:02:24 Re: collection of sante celiberti (Sante Celiberti)
06 Dec-15:28:15 Re: is honey calcite real? (Steveb)
06 Dec-15:07:56 Re: is honey calcite real? (Matt_zukowski)
06 Dec-14:49:39 Is honey calcite real? (Trtlman)
06 Dec-13:14:18 Re: canon slr with stacking (James Catmur)
06 Dec-11:49:41 Re: collection of michael shaw (Michael Shaw)
06 Dec-09:42:12 Re: canon slr with stacking (Bob Morgan)
06 Dec-07:18:13 Re: collection of volkmar stingl (Volkmar Stingl)
05 Dec-14:10:02 Re: collection of volkmar stingl (Volkmar Stingl)
05 Dec-14:02:14 Re: collection of sante celiberti (Sante Celiberti)
05 Dec-13:37:42 Re: cannon slr with stacking (Raystraw)
05 Dec-10:31:52 Re: collection of sante celiberti (Philippe Durand)
05 Dec-05:11:39 Re: new generation for picture - ploum (Ploum)
05 Dec-02:45:17 Re: new generation for picture - ploum (Ploum)
04 Dec-15:36:48 Re: collection of sante celiberti (Sante Celiberti)
04 Dec-14:48:49 Siderite - silvia's collection (Silvia)
04 Dec-13:32:34 Re: new generation for picture - ploum (Ploum)
04 Dec-05:23:32 Re: new generation for picture - ploum (Ploum)
03 Dec-10:59:16 Re: collection of michael shaw (Michael Shaw)
02 Dec-15:36:00 Re: a mineralogical trip through italy by sante celiberti (Sante Celiberti)
02 Dec-14:35:13 Re: collection of volkmar stingl (Volkmar Stingl)
01 Dec-23:12:31 The mizunaka collection - quartz (Am Mizunaka)
01 Dec-15:07:40 Re: may i get a read (James Catmur)

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  Topic: what rock/mineral is this? (2)
Marjolein van Braak

Replies: 6
Views: 1116

PostForum: What is it? - Where is it from?   Posted: Aug 29, 2021 06:13   Subject: Re: what rock/mineral is this? (2)
Thank you, for you help! From now on I will first try to identify with mindat.

Most of the time I do have a basic idea of what it could be. As a kid I collected around 200 specimens or so. But now ...
  Topic: what rock/mineral is this? (2)
Marjolein van Braak

Replies: 6
Views: 1116

PostForum: What is it? - Where is it from?   Posted: Aug 28, 2021 14:54   Subject: Re: what rock/mineral is this? (2)
This appears to be a specimen of baryte (cream colored) and vanadanite (dark rust-red colored) from Mibladen, Morocco. The little crystals on the back might be pyromorphite; they're a little blurry. ...
  Topic: what rock/mineral is this? (2)
Marjolein van Braak

Replies: 6
Views: 1116

PostForum: What is it? - Where is it from?   Posted: Aug 28, 2021 12:56   Subject: what rock/mineral is this? (2)
Can someone help me with this one? The red crystals are Vanadinite. But what are the light brown (smaller) crystals? And is the white/yellowish underside baryte? Or is there another mineral that looks ...
  Topic: Mookaite?
Marjolein van Braak

Replies: 2
Views: 694

PostForum: What is it? - Where is it from?   Posted: Aug 28, 2021 12:31   Subject: Mookaite?
These rocks were labelled Mookaite (from Kennedy Range Australia). I am not 100% sure anymore if this was the right label. Could it be?

Hardness is 6-7
  Topic: what rock/mineral is this?
Marjolein van Braak

Replies: 1
Views: 558

PostForum: What is it? - Where is it from?   Posted: Aug 28, 2021 12:22   Subject: what rock/mineral is this?
Another mineral that I can't figure out. Some of the green pieces do look like green tourmaline. Google searches led me to actinolite. But neither of these are convincing for me.

If you need more ...
  Topic: Green botryoidal formation
Marjolein van Braak

Replies: 6
Views: 1271

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Aug 28, 2021 11:58   Subject: Re: Green botryoidal formation
What is the black mineral on your specimen? On mindat there are a couple of photo's of malachite with botryoidal hematite.

If you mean the 'black' botryoidal formation in the middle. This is actual ...
  Topic: Green botryoidal formation
Marjolein van Braak

Replies: 6
Views: 1271

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Aug 28, 2021 07:34   Subject: Re: Green botryoidal formation
The hardness is around 3.The streak color is light green.
  Topic: Black stones
Marjolein van Braak

Replies: 4
Views: 977

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Aug 28, 2021 07:14   Subject: Re: Black stones
Thank you for the reply, the hardness of the second specimen is indeed about the same as quartz. The second one is a little bit harder to determine, but I think it is also approximately the same. Quar ...
  Topic: Green botryoidal formation
Marjolein van Braak

Replies: 6
Views: 1271

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Aug 28, 2021 06:47   Subject: Green botryoidal formation
I am not sure about this one. It could be malachite? The light green feels soft to the touch, but if you've touched it, the thin layer seems damaged. I don't know where it comes from.
  Topic: Black stones
Marjolein van Braak

Replies: 4
Views: 977

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Aug 28, 2021 06:35   Subject: Black stones
I am not really sure about those 2 stones. My 2 guesses are black hornblende or black tourmaline, but it could be that I am wrong, black stones drive me crazy at times. I also have no clue where those ...
 
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