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## 20.08.2015

### Aktuelle Version von: Dan , 20.08.2015

#### Text:

 I'm not sure you can do a direct comparison here from a weight perspective unless you had the two parts in hand and had a very fine scale to weight them. Let say the size of the cover glass is the same for either. So one would need to look at other properties to figure out if there was a weight difference. The easiest way is to look at the Atomic Weight of the two. While one can find [http://www.almazoptics.com/sapphire.htm|Sapphire] Gorilla Glass is not listed but we can compare it to [http://www.almazoptics.com/Quartz.htm|Quartz]. I suspect Gorilla Glass would be heaver as the molten alkaline potassium salt would impregnate into the voids. Lets say it would add 10 to the Molecular Weight. Let say the size of the cover glass is the same for either. So one would need to look at other properties to figure out if there was a weight difference. The easiest way is to look at the Atomic Weight of the two. While one can find [http://www.almazoptics.com/sapphire.htm|Sapphire], Gorilla Glass is not listed but we can compare it to [http://www.almazoptics.com/Quartz.htm|Quartz]. I suspect Gorilla Glass would be heaver as the molten alkaline potassium salt would impregnate into the voids. Lets say it would add 10 to the Molecular Weight. So looking at the numbers: * Sapphire - Molecular Weight: 101.94 * Crystal Quartz - Molecular Weight: 60.06 A difference of 41.88 (grams per mole) so its clear Sapphire is heaver if the objects were the exact same size in this example. Now adding the potassium salt it would only be about 32 (grams per mole) difference. A difference of 41.88 (grams per mole) so its clear Sapphire is heaver if the objects were the exact same size in this example. Now adding the potassium salt it would only be about 32 (grams per mole) difference. It's also possible Apple uses a thinner plate of Sapphire here given its costs and added strength. So the difference could end up being very little.

`open`

## 20.08.2015

### Bearbeitet von: Dan , 20.08.2015

#### Text:

 I'm not sure you can do a direct comparison here from a weight perspective unless you had the two parts in hand and had a very fine scale to weight them. Let say the size of the cover glass is the same for either. So one would need to look at other properties to figure out if there was a weight difference. The easiest way is to look at the Atomic Weight of the two. While one can find [http://www.almazoptics.com/sapphire.htm|Sapphire] Gorilla Glass is not listed but we can compare it to [http://www.almazoptics.com/Quartz.htm|Quartz]. I suspect Gorilla Glass would be heaver as the molten alkaline potassium salt would impregnate into the voids. Lets say it would add 10 to the Molecular Weight. So looking at the numbers: * Sapphire - Molecular Weight: 101.94 * Crystal Quartz - Molecular Weight: 60.06 A difference of 41.88 (grams per mole) so its clear Sapphire is heaver if the objects were the exact same size in this example. Now adding the potassium salt it would only be about 32 (grams per mole) difference. It's also possible Apple uses a thinner plate of Sapphire as well here given its costs and added strength. So the difference could end up being very little. * Sapphire - Molecular Weight: 101.94 * Crystal Quartz - Molecular Weight: 60.06 A difference of 41.88 (grams per mole) so its clear Sapphire is heaver if the objects were the exact same size in this example. Now adding the potassium salt it would only be about 32 (grams per mole) difference. It's also possible Apple uses a thinner plate of Sapphire here given its costs and added strength. So the difference could end up being very little.

`open`

## 20.08.2015

### Bearbeitet von: Dan , 20.08.2015

#### Text:

 I'm not sure you can do a direct comparison here from a weight perspective unless you had the two parts in hand and had a very fine scale to weight them. Let say the size of the cover glass is the same for either. So one would need to look at other properties to figure out if there was a weight difference. The easiest way is to look at the Atomic Weight of the two. While one can find [http://www.almazoptics.com/sapphire.htm|Sapphire] Gorilla Glass is not listed but we can compare it to [http://www.almazoptics.com/Quartz.htm|Quartz]. I suspect Gorilla Glass would be heaver as the molten alkaline potassium salt would impregnate into the voids. Lets say it would add 10 to the Molecular Weight. So looking at the numbers: Sapphire - Molecular Weight: 101.94 Crystal Quartz - Molecular Weight: 60.06 * Sapphire - Molecular Weight: 101.94 * Crystal Quartz - Molecular Weight: 60.06 A difference of 41.88 (grams per mole) so its clear Sapphire is heaver if the objects were the exact same size in this example. Now adding the potassium salt it would only be about 32 (grams per mole) difference. It's also possible Apple uses a thinner plate of Sapphire as well here given its costs and added strength. So the difference could end up being very little.

`open`

## 20.08.2015

### Bearbeitet von: Dan , 20.08.2015

#### Text:

 I'm not sure you can do a direct comparison here from a weight perspective unless you had the two parts in hand and had a very fine scale to weight them. Let say the size of the cover glass is the same for either. So one would need to look at other properties to figure out if there was a weight difference. The easiest it to look at the Atomic Weight of the two. While one can find [http://www.almazoptics.com/sapphire.htm|Sapphire] Gorilla Glass is not listed but we can compare it to [http://www.almazoptics.com/Quartz.htm|Quartz]. I suspect Gorilla Glass would be heaver as the molten alkaline potassium salt would impregnate into the voids. Lets say it would add 10 to the Molecular Weight. Let say the size of the cover glass is the same for either. So one would need to look at other properties to figure out if there was a weight difference. The easiest way is to look at the Atomic Weight of the two. While one can find [http://www.almazoptics.com/sapphire.htm|Sapphire] Gorilla Glass is not listed but we can compare it to [http://www.almazoptics.com/Quartz.htm|Quartz]. I suspect Gorilla Glass would be heaver as the molten alkaline potassium salt would impregnate into the voids. Lets say it would add 10 to the Molecular Weight. So looking at the numbers: Sapphire - Molecular Weight: 101.94 Crystal Quartz - Molecular Weight: 60.06 A difference of 41.88 (grams per mole) so its clear Sapphire is heaver if the objects were the exact same size in this example. Now adding the potassium salt it would only be about 32 (grams per mole) difference. It's also possible Apple uses a thinner plate of Sapphire as well here given its costs and added strength. So the difference could end up being very little.

`open`

## 20.08.2015

### Bearbeitet von: Dan , 20.08.2015

#### Text:

 I'm not sure you can do a direct comparison here from a weight perspective unless you had the two parts in hand and had a very fine scale to weight them. I would expect the size of the cover glass would be the same for either. So one would need to look at other properties to figure out if there was a weight difference. The easiest it to look at the Atomic Weight of the two. While one can find [http://www.almazoptics.com/sapphire.htm|Sapphire] Gorilla Glass is not listed but we can compare it to [http://www.almazoptics.com/Quartz.htm|Quartz]. I suspect Gorilla Glass would be heaver as the molten alkaline potassium salt would impregnate into the voids. Lets say it would add 10 to the Molecular Weight. Let say the size of the cover glass is the same for either. So one would need to look at other properties to figure out if there was a weight difference. The easiest it to look at the Atomic Weight of the two. While one can find [http://www.almazoptics.com/sapphire.htm|Sapphire] Gorilla Glass is not listed but we can compare it to [http://www.almazoptics.com/Quartz.htm|Quartz]. I suspect Gorilla Glass would be heaver as the molten alkaline potassium salt would impregnate into the voids. Lets say it would add 10 to the Molecular Weight. So looking at the numbers: Sapphire - Molecular Weight: 101.94 Crystal Quartz - Molecular Weight: 60.06 A difference of 41.88 (grams per mole) so its clear Sapphire is heaver if the objects were the exact same size in this example. Now adding the potassium salt it would only be about 32 (grams per mole) difference. It's also possible Apple uses a thinner plate of Sapphire as well here given its costs and added strength. So the difference could end up being very little.

`open`

## 20.08.2015

### Ursprünglicher Beitrag von: Dan , 20.08.2015

#### Text:

```I'm not sure you can do a direct comparison here from a weight perspective unless you had the two parts in hand and had a very fine scale to weight them.

I would expect the size of the cover glass would be the same for either. So one would need to look at other properties to figure out if there was a weight difference. The easiest it to look at the Atomic Weight of the two. While one can find [http://www.almazoptics.com/sapphire.htm|Sapphire] Gorilla Glass is not listed but we can compare it to [http://www.almazoptics.com/Quartz.htm|Quartz]. I suspect Gorilla Glass would be heaver as the molten alkaline potassium salt would impregnate into the voids. Lets say it would add 10 to the  Molecular Weight.

So looking at the numbers:

Sapphire -         Molecular Weight: 101.94

Crystal Quartz -    Molecular Weight:  60.06

A difference of  41.88 (grams per mole) so its clear Sapphire is heaver if the objects were the exact same size in this example. Now adding the potassium salt it would only be about 32 (grams per mole) difference. It's also possible Apple uses a thinner plate of Sapphire as well here given its costs and added strength. So the difference could end up being very little.```

`open`