From

Location

Message

Date Posted

Colorado

I am a rockhound and have a good supply of pure calcite. Has anyone used it as a supplement for the calcium in tomatoes?
It is calcium carbonate and dissolves slowly in water.

2/9/2022 10:56:49 PM

Colorado

I also have selenite (pure crystalized gypsum) that I can add.
It is calcium sulfate. It might be better than calcite as it breaks down into sulfur and calcium.

2/9/2022 11:22:12 PM

Grittyville, WA

By dissolves slowly, are we talking geologic time? Some successful pumpkin growers use a lot of gypsum. Calcite could be your secret weapon for growing big tomatoes. Shhh...

2/9/2022 11:30:16 PM

Colorado

It dissolves pretty quick. If you leave a nice specimen outside it will be etched (wrecked outside) by fall. I'm sure crushing it up creates more surface area and helps the process along.

2/10/2022 3:09:50 PM

Colorado

It's the same process that makes the cool cave formations.

2/10/2022 3:11:00 PM

I do not know about calcite but the smaller the particle for most stuff the faster it works. I think that is why mesh size matters with lime.

2/10/2022 4:57:46 PM

Colorado

Ya calcite is like lime but more pure.

2/10/2022 6:18:11 PM

Team Canuckle Heads

Hey Scott. I sent you an email. Did you get it? Check your spam

2/10/2022 6:32:43 PM

Colorado

I did not get it. The_scott_luers "at" yahoo "dot" com

2/10/2022 11:35:39 PM

Colorado

oh nm found it

2/10/2022 11:36:15 PM

Grittyville, WA

Mixing minerals with organics should be a good strategy, very broadly speaking.

2/11/2022 12:47:11 AM