|
A general guide for using the Forum with some rules and tips
The information provided within this Forum about localities is only given to allow reference to them. Any visit to any of the localities requires you to obtain full permission and relevant information prior to your visit. FMF is strictly against any illicit activities related to collecting minerals.
|
| Search found 14 matches |
| Author | Message |
|---|---|
 Topic: Identifying possible olivine specimen |
|
| MKomishyn Replies: 2 Views: 8734 |
 Forum: What is it? - Where is it from? Posted: Mar 06, 2020 06:07 Subject: Identifying possible olivine specimen |
| First off, very new to mineralogy. Open to criticisms.
Found this in an area that commonly has a variety of igneous rocks. The area was an Archean volcanic island chain that slammed into what is n ... |
|
| Topic: Unidentified green crystal |
|
| MKomishyn Replies: 21 Views: 25034 |
Forum: What is it? - Where is it from? Posted: Mar 02, 2020 11:52 Subject: Re: Unidentified green crystal |
| Thanks, everyone. Specific gravity was 2.62 (crappy scale but confidently it is not anything else besides green quartz / aventurine). Thanks so much!
Solved: Green quartz or aventurine |
|
| Topic: Unidentified green crystal |
|
| MKomishyn Replies: 21 Views: 25034 |
Forum: What is it? - Where is it from? Posted: Feb 21, 2020 14:16 Subject: Re: Unidentified green crystal |
| I borrowed a presidium gem tester 2, and it reads as jadeite. That sort of fits with all of the other properties, and jadeite is found in NC (not often). I will post back after I get my triple-beam sc ... | |
| Topic: Fungal etching of garnets? |
|
| MKomishyn Replies: 1 Views: 18694 |
Forum: Mineralogical Literature Posted: Feb 19, 2020 19:01 Subject: Re: Fungal etching of garnets? |
| Good catch! It would not surprise me. Fungus has been known to uptake heavy metals from the soil they are in, as well as benefit or harm various other species, from humans to plants.
Biosorption o ... |
|
| Topic: The State of Modern Geology |
|
| MKomishyn Replies: 14 Views: 32455 |
Forum: Minerals and Mineralogy Posted: Feb 19, 2020 16:49 Subject: Re: The State of Modern Geology |
| From the perspective of a computer scientist--
I hear from advisors and professors, nowadays, the same arguments about computer science. I've heard computer science is too generalized; They say the ... |
|
| Topic: Unidentified green crystal |
|
| MKomishyn Replies: 21 Views: 25034 |
Forum: What is it? - Where is it from? Posted: Feb 17, 2020 16:58 Subject: Re: Unidentified green crystal |
| Thanks for the encouragement. I am pretty sure what is happening is that I don't have a flat enough surface and so I am getting the refractive index of the contact fluid. I'm going to try to grind it ... | |
| Topic: Unidentified green crystal |
|
| MKomishyn Replies: 21 Views: 25034 |
Forum: What is it? - Where is it from? Posted: Feb 17, 2020 16:17 Subject: Re: Unidentified green crystal |
| I think you are both right in thinking it is colored quartz. I retested my refractometer and something is off. Sorry, but I really appreciate all the help. I'm an amateur basically stumbling around th ... | |
| Topic: Unidentified green crystal |
|
| MKomishyn Replies: 21 Views: 25034 |
Forum: What is it? - Where is it from? Posted: Feb 17, 2020 15:45 Subject: Re: Unidentified green crystal |
| Better picture of what I thought were faces. | |
| Topic: Unidentified green crystal |
|
| MKomishyn Replies: 21 Views: 25034 |
Forum: What is it? - Where is it from? Posted: Feb 17, 2020 15:41 Subject: Re: Unidentified green crystal |
| Would that throw off the refractive index that much? Sorry, I'm very new to this. | |
| Topic: Unidentified green crystal |
|
| MKomishyn Replies: 21 Views: 25034 |
Forum: What is it? - Where is it from? Posted: Feb 17, 2020 15:14 Subject: Re: Unidentified green crystal |
| The specimen was found in an older riverbed that a creek now runs through. It is East of the NC piedmont area and West of the coastal plain.
This area once was part of a volcanic island chain that mi ... |
|
| Topic: Unidentified green crystal |
|
| MKomishyn Replies: 21 Views: 25034 |
Forum: What is it? - Where is it from? Posted: Feb 17, 2020 14:19 Subject: Re: Unidentified green crystal |
| The original specimen | |
| Topic: Unidentified green crystal |
|
| MKomishyn Replies: 21 Views: 25034 |
Forum: What is it? - Where is it from? Posted: Feb 17, 2020 14:17 Subject: Re: Unidentified green crystal |
| These pieces were fractured from a larger piece. | |
| Topic: Unidentified green crystal |
|
| MKomishyn Replies: 21 Views: 25034 |
Forum: What is it? - Where is it from? Posted: Feb 17, 2020 14:16 Subject: Re: Unidentified green crystal |
| Sliver is translucent green | |
| Topic: Unidentified green crystal |
|
| MKomishyn Replies: 21 Views: 25034 |
Forum: What is it? - Where is it from? Posted: Feb 17, 2020 14:14 Subject: Unidentified green crystal |
| Hello, and thank you all in advance for your help.
I have been amateur rock-hounding this past year, and I found a crystal I cannot identify. I read a lot of conflicting information online regardin ... |
|
All times are GMT - 5 Hours |
FAQ 
Register
Log in
Forgotten your password?
