<p>The details are not known for certain, however it is generally thought to have a rocky core, formed of silicates (aluminium and magnesium silicate for example) and a large mantle of water ice, perhaps 50% by volume, 25% by mass. The surface crust is formed of various carbonaceous and iron minerals: siderite, dolomite, cronstedtite. There may be a small iron core. </p>

CC BY-SA 4.0
2018-10-14T09:28:07.443Z
Any chance of giving  source?
Steve Linton
CC BY-SA 4.0
2018-10-14T06:29:03.227Z
2018-10-14T06:29:03.227Z
James K
<p>Strangely, there isn't a lot of information on Ceres on the internet. I want to know the specific percentages of its composition.</p>

<p>Thanks in advance!</p>

CC BY-SA 4.0
2018-10-14T15:40:25.517Z
As @JamesK pointed out.   We don't know it's specific composition.   Nasa did a fly-by recently, but nothing has ever landed on Ceres.   Estimates can be made, but it's hard to know specifically what the inside of a planet is made of.   We don't even know the interior of the Earth all that well.
userLTK
<asteroids><ceres>
What's the composition of Ceres?
MystaryPi
# What's the composition of Ceres?

(Asked by: username_0 on 2018-10-14)

Strangely, there isn't a lot of information on Ceres on the internet. I want to know the specific percentages of its composition.

Thanks in advance!

**Tags:** asteroids, ceres
> **Comments:**
> **username_1**: As @JamesK pointed out.   We don't know it's specific composition.   Nasa did a fly-by recently, but nothing has ever landed on Ceres.   Estimates can be made, but it's hard to know specifically what the inside of a planet is made of.   We don't even know the interior of the Earth all that well.  

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## 1 answers

### Answer by username_2 on 2018-10-14. Score: 1 | Accepted answer

The details are not known for certain, however it is generally thought to have a rocky core, formed of silicates (aluminium and magnesium silicate for example) and a large mantle of water ice, perhaps 50% by volume, 25% by mass. The surface crust is formed of various carbonaceous and iron minerals: siderite, dolomite, cronstedtite. There may be a small iron core.

> **Comments:**
> **username_3**: Any chance of giving  source?  

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