H is for Howlite
Howlite is a borate mineral – a mineral containing the element boron. It was first discovered in 1868 when miners, complaining of an annoying mineral impacting their mining in a gypsum quarry, brought it to the attention of chemist and geologist Henry How.
With a hardness of only 3.5 on the Mohs scale, it is not suitable for use as a cut gem. It is more often tumbled or cut and polished and used in either beading or used for small carvings or other decorative objects.
Howlite is white with gray or black streaks and the rough shape resembles a head of cauliflower. Because it is extremely porous, it is often dyed to look like turquoise. Since Howlite is often used in beaded jewelry, it is easy to find often pre-drilled for stringing onto wire for jewelry.
I love the organic shapes of sliced Howlite, although I do not care for it dyed – it never looks natural to me. Also, dyed porous minerals can often ‘bleed’ onto skin or clothing. It makes an interesting necklace and is often a great conversation starter. There is an excellent photograph of Howlite from Nova Scotia here on minedat.org.
I still have a beaded necklace I made WAY back when I first started making beaded jewelry. I love how well it works with brighter colored beads. The photo is attached below.

I just asked my wife if she has any Howlite, and she said she has a small angel carved out of Howlite. It is supposed to be good for sleep, but doesn’t seem to be working for her in that capacity. 🙂
Best wishes, Pete.
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Some believe your minerals must be recharged in the moonlight, Pete. Maybe she could try that.
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She does that every full Moon, Maggie. They get lined up inside on the window ledges, or outside on a table in fair weather. 🙂
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She could try sunlight, too, for the howlite.
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Another element I recognize but didn’t know it’s name. I do love the necklace and earrings 💜
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Thank you, Willow. Many people do not like orange sadly. I love the two together.
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I think is a fantastic mix 😉
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Thank you.
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😉😉😉
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I’ve never heard of this stone. It is pretty. I like that you find options for different stones based on their hardness.
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PS – I meant to add congratulations on wrapping up the first full week. You’re doing great!
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Thank you, Dan. It has been a fun venture thus far. I do love examining the possibility of each stone.
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So pretty, and you’re right! It really looks like a cauliflower! 😀
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It is a funny looking mineral!
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I’m not sure I’ve ever seen Howlite that wasn’t tumbled or carved – seeing the “cauliflower” brain piece was cool. Your necklace and earrings are lovely,
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Thank you. I love this necklace, too. The howlite is so unusual looking., isn’t it?
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What an AMAZING necklace!
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Thank you so much!
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I agree with you, I love the shapes, but I don’t like the dyed version either.
The Multicolored Diary
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Supposedly, howlite dyed blue looks like turquoise. It is not even close!
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It’s a beautiful necklace set. Love the unusual shapes.
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Thank you, Sadje. The organic shapes are what draw me in, too.
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You’re welcome
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Wow, it does look like cauliflower, one of my fav vegetables. Interesting post.
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Thank you, Steve. It is such an interesting mineral.(I, too, love cauliflower.)
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I thought of your story this afternoon…yes, cauliflower for dinner 😉
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😊
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The picture from Nova Scotia was amazing. This stone was new to me, and I don’t particularly like it. Who knows why.
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I think I am drawn to it because it looks more rustic hearkening back to a time when adornments were less refined.
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