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**WPRESTO** · 07-16-2018, 05:51 AM - **3 Likes**

A natural formation, maybe 1.5 inches (~3,5cm) across. The dark mineral deposit is technically chalcophanite (kal-KAF-an-ite) a hydrated oxide of iron, zinc and manganese. The pattern is called a dendrite, a more common way to see this rare mineral than in large crystals or masses..

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**noelcmn** · 07-17-2018, 03:06 AM - **1 Like**

MikeW · 07-17-2018, 12:52 PM - **1 Like**

University of Bonn

Bonn_Popplesdorf by UnderOpenWater, on Flickr

---------- Post added 07-17-18 at 03:57 PM ----------

I hope Karlchen found his way home.

Bonn_Karlchen by UnderOpenWater, on Flickr

**WPRESTO** · 07-18-2018, 03:09 AM - **1 Like**

Ceiling of the cathedral at Pisa. It was quieter inside than out near that tower.

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**WPRESTO** · 07-18-2018, 10:08 AM - **2 Likes**

Mosaic floor tiles, Basilica of Santa Croce.

**WPRESTO** · 07-18-2018, 05:33 PM - **1 Like**

Our deck punctuated by raindrops during the thorms yesterday afternoon.

**noelcmn** · 07-19-2018, 11:49 AM - **1 Like**

**WPRESTO** · 07-19-2018, 01:02 PM - **1 Like**

Ceiling, Basilica de Santa Croce

**noelcmn** · 07-19-2018, 01:16 PM - **2 Likes**

**Geodude** · 07-20-2018, 10:13 AM - **2 Likes**

Patterns with Texture

**CharLac** · 07-20-2018, 11:32 AM

Originally posted by Geodude

Patterns with Texture

Excellent perspective! You nailed this one....how long did it take you to roll them into just the right position?

**CharLac** · 07-20-2018, 11:33 AM - **1 Like**

First time driving across Canada during harvest.

**WPRESTO** · 07-20-2018, 02:06 PM - **2 Likes**

Quite a diversity in the sources for patterns recently. This was built by First Nations (Native American) people and abandoned long before Europeans saw it.

**Geodude** · 07-21-2018, 07:10 AM - **1 Like**

Originally posted by CharLac

Excellent perspective! You nailed this one....how long did it take you to roll them into just the right position?

Not long... I just borrowed the vehicle from across the street.

**Kerrowdown** · 07-21-2018, 01:52 PM - **4 Likes**

07-17-2018, 12:52 PM - 1 Like	#1593
MikeW Veteran Member Join Date: Jan 2008 Location: Indiana Photos: Gallery Posts: 437	k5 with 16-45 in Germany University of Bonn Bonn_Popplesdorf by UnderOpenWater, on Flickr ---------- Post added 07-17-18 at 03:57 PM ---------- I hope Karlchen found his way home. Bonn_Karlchen by UnderOpenWater, on Flickr

07-21-2018, 01:52 PM - 4 Likes	#1605
Kerrowdown PEG Moderator Join Date: Aug 2008 Location: Highlands of Scotland... "Hold Infinity in the palm of your hand" - William Blake Photos: Gallery Posts: 57,863	Not Fresh Cut

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CharLac Loyal Site Supporter Join Date: Apr 2018 Location: Ottawa Photos: Gallery Posts: 8,419	Originally posted by Geodude Patterns with Texture Excellent perspective! You nailed this one....how long did it take you to roll them into just the right position?

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