Tungston Mineral?

[605dano]

This rock is very heavy. That's what caught my attention when I first picked it up. I'm thinking maybe a tungston mineral. Any ideas?

 

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[Indian Steve]

WOW! I don't know what it is but I SURE LIKE IT!

 

[Kray Gelder]

Cummingtonite? Cool looking specimen.

 

[Eu_citzen]

I'd guess a manganese-based mineral.

 

[605dano]

Some more info. SG for rock was 4.07 with about a third of the rock quartz. Streak was a reddish brown. Probably not a tungston mineral. Hematite? I've never seen radiating faces like that with Hematite. Bought it at a rock swap. Lady who sold it to me didn't know what was either.

 

[Eu_citzen]

Some more info. SG for rock was 4.07 with about a third of the rock quartz. Streak was a reddish brown. Probably not a tungston mineral. Hematite? I've never seen radiating faces like that with Hematite. Bought it at a rock swap. Lady who sold it to me didn't know what was either.

Manganite is my bet.

 

[stdenis_jd]

I'm thinking goethite. Acicular pattern, same color streak as hematite, SG is a fit (barely)

 

[IAMZIM]

I'm thinking goethite. Acicular pattern, same color streak as hematite, SG is a fit (barely)

It does look a lot like goethite, i'll see if I can dig some of my goethite up....